Silicone Dildo Firmness: Comparing Single- and Dual-Density Squish

I *love* silicone dildos. Why? They’re the only body-safe sex toys that don’t have to be really hard! If you want a penis-like feel in your sex toy—or you want an abstract dildo that’s soft but not floppy—then a dual-density dildo is the way to go! (But be sure it’s dual-density silicone, because there are also dual density or “dual layer” dildos made from unsafe TPE and PVC.)

Discovering my favorite silicone toys was a process, because silicone blends do vary so much! After lots of testing, I wrote this firmness guide to help you figure out how soft or hard various brands of silicone dildos are—and hopefully, which might work best for you.

Feel free to skip ahead to my comparative “squish lists”: the Dual-Density Dildos section for the unique feel of a two-layered toy, or the Single-Density Dildos section for everything else. And if price is a big factor for you, also check out my list of places to find affordable silicone sex toys

Squish Matters

Quality platinum-cured silicone is a beautiful material for sex toys because:

  1. It’s functionally nonporous and hydrophobic, meaning that it naturally protects against bacterial growth (unlike less-safe materials including TPR/TPE, PVC, latex, “rubber,” and “jelly”).
  2. It can be fully sanitized—killing all bacteria and microorganisms—because it’s very chemically stable and resistant to high temperatures. That makes it safe to use for years at a time, and after sanitizing a toy, you can use it vaginally after having used it anally or use it with a different partner.1
  3. It can be soft! Softer silicone toys include more dimethicone (polydimethylsiloxane, or PDMS)—basically, silicone oil. “Softness” might seem like a strange quality to be looking for in an artificial erection, but materials like stainless steel, wood, ceramic, and plastic have no hopes of feeling lifelike, ever—and toys made of these hard materials are often uncomfortable for the more sensitive toy user.

That’s why I believe every new dildo-buyer should know that silicone toys vary in so many ways: not just in size and shape, but in firmness. Some silicone dildos are super squishy, while some are extremely hard. Even toys by the same sex toy manufacturer can vary a lot!

Dildo hardness can be measured on a scale called shore durometer. Smooth-On, the leading US silicone manufacturer, has a helpful graphic on this page that compares three different shore durometer scales, two of which (00 and A) are used to grade sex toys:

  • 00-20 through 00-50 is extremely soft. 00-20 is usually only for penis masturbation sleeves, 00-30 is very soft for dildos, and 00-50 is a popular squishy firmness for fantasy dildos.
  • 1A to 8A range from squishy to still fairly soft.
  • 10A is soft(ish) for sex toys; 15A is starting to get firmer. 20A is somewhat hard, especially when used on sensitive erogenous zones.
  • The graphic still labels 30A as soft too, but that’s soft for industrial use; 40A is “medium soft,” as per Smooth-On. But 40A doesn’t feel too much different from glass when it’s pounding you.

Knowing a toy’s shore strength can give you some idea of how it’ll feel inside you before you buy. But it’s not an absolute guarantee of how the toy will feel for your body, because (1) individual sensitivity differs, and (2) other factors can affect the final hardness of platinum-cured silicone—especially the size of the toy. (The larger a toy in the same silicone blend, the firmer it’ll feel overall.)

The Squish Lists

Dual-Density Dildos

Dual-density dildos attempt to create a more penis-like effect through their two layers of silicone: a soft outside hugging a firm core. That way, the toy can be yielding (more like flesh) but not bend backward when you’re really pounding it. The reigning monarch of dual-density dildos, the VixSkin Mustang, has almost a cult following for its squishy G-spot/prostate goodness, while I think the most overall-realistic silicone dual is the BMS Naked Addition. And if you prefer a less-realistic look, good choices are the Blush Real Nude dils and the Tantus Flurry and Cush.

For BIG dildos (2″+ diameter), I recommend the VixSkin Maverick, Outlaw, and Randy; or the Uberrime Large Splendid for more pressure. For smaller-than-average toys, check out the VixSkin Spur especially!

See my YouTube videos for a live demo: pt. 1, firmer to pretty soft; and pt. 2, pretty soft to super squishy. From firmest to softest:

  1. Blush Novelties’ Ruse Jammy and the Silicone Willy’s line2 are made up of two materials (silicone + ABS plastic—see details in my Ruse Jammy review) but aren’t labeled as dual-density because the silicone layer is firmer than other duals, at 20A shore. My Silicone Willy’s 6″ has a grabby, skin-like texture that I enjoy, and I think the Jammy is big-dick excellence at an affordable price.
  2. Tantus O2 realistic dildos: Tantus’ phallic toys tend to be on the firmer side, especially the bullet-vibe-compatible SamDuchess, and Alan (review here), due to their thicker, harder cores. Of the non-vibrating realistics, next-firmest is Uncut #1, my dual-density dildo awakening and one of my long-time favorites, whose outer layer of silicone measures up to 10A shore; while Gary is a much-softer 5A. The Tantus O2 realistics have a grabby finish that adds some friction—which I love but some people find abrupt.
  3. The Uberrime Splendid Dual-Density Dildo now comes in three sizes—all handmade by an independent artist in the US. I love my (medium) Splendid, enough to call it the best new G-spotter of 2018. Splendid dildos are made of Smooth-On premium skin-safe silicone and test at about 5A shore in the heads: kinda soft but not super-squishy. When I want more impact, I like that the medium Splendid is harder than VixSkin—and the large Splendid is even more ooomph than that!
  4. Tantus O2 less-phallic dildos: This means the Tantus Cush and Tantus Flurry! The Cush has a much squashier head than my Tantus realistics, and a smoother finish too.
  5. Blush Neo Elite is now my top affordable realistic recommendation overall, for around $30 each. The Neo Elite 7.5″ Dual Density Cock with Balls is the exact same shape as the NS Colours Dual Density 5″, but with a slightly firmer outer layer3 and a much glossier finish, so you feel the veins less. I generally recommend Neo Elite over Colours Dual Density because the construction is better: no ragged edges around the balls, for example. And the taper on the 7.5″ without balls is nice for those of us whose butt needs lots of warmup! Neo Elite toys feel very good in use—pretty lifelike, but IMO not quite as awesome as BMS Naked Addiction (#9, below).
  6. Pleasure Works Firm Core Silicone dildos: With a malleable and squishy head, Cadet Vibrating (review here) bends easily due to its Vac-U-Lock-like bullet vibe hole. Cadet Vibrating has an interesting finish: the head has an almost grainy texture, but the shaft is both really sticky and really slick. IMO it’s really easy to overlook Pleasure Works dildos in this sea of dual-density.
  7. Blush Novelties’ Real Nude dildos are the best affordable non-realistic option. Ergo’s head tests at a squishy 0.5A shore, but all Real Nude toys—except Helio—have a very firm core; they really don’t bend with thrusting. Plus, Ergo, Suko, and Sumo have good to great suction cups. Real Nude toys have a very glossy, sticky finish that can glide really nicely but requires a lot of lube.
  8. The BMS Naked Addiction Dual Density Dildo has a lackluster name but an amazing feelIt’s pretty damn lifelike, and the silicone finish is outstanding; I can’t even describe how much nicer it feels than most dual density dildos. I think this dildo feels better in my hand than VixSkin, and pretty amazing in my vag too: it’s not sticky and slick, but instead more realistic. (Also, the suction cup works well!) I do wish this toy came in different colors, shapes, and sizes—I like the silicone so much, I want it to be an entire dildo lineup!
  9. BMS Factory also makes a bendable/posable dual-density silicone dildo called Addiction David, for only $40. Its outer layer is soft like Naked Addiction but it’s a little slicker, so it’s not quite as skinlike, but I know there are lots of users who enjoy less drag. David’s hard core bends at whatever angle you want (see a video here), making it superior for comfortable suction cup play. 
  10. NS Novelties now sells two Colours Dual Density Silicone dongs4—realistic toys that are as affordable as Blush Neo Elite but stand out for two reasons: the 8 Inch Colours Dual is the way to go for bigger but budget-friendly, while the 5″ here comes in three flesh tones (unlike Neo Elite). Colours Dual Density is squishy outside, but I can feel the veins more; and its stickiness requires more lube. The suction cups are good.
  11. New York Toy Collective’s dildos really have some nice squish in the heads especially.5 The NYTC packing dildos—Shilo, Mason, Carter, and Leroy—are unique because they have a bendable metal rod inside. This makes them “posable,” so you choose the angle. NYTC also makes one traditional dual-density dildo (with silicone core instead of metal), called Ellis (my review here), whose shaft feels quite realistic—though super grabby. (Now that I own a BMS Naked Addiction Dual, I know I’d buy it over Ellis because it’s a slightly better feel for half the price.)
  12. Black Cock Denerick: Black Cock is a totally new toymaker, but Denerick is very well-made. With an outer layer of squishy 00-30 silicone and lots of realistic skin detail, it’s an awesome stretch—and $95 is very low for the amount of US-made platinum silicone in this big black dildo.
  13. VixSkin, by Vixen Creations: The VixSkin Mustang is the single most popular dual on the market—it’s hard not to love its softness and protruding head, which feels so damn good hitting my G-spot over and over. The outer layer of VixSkin is luxuriously squishy, around the feel of the soft options from many fantasy toy makers. As for the larger VixSkin offerings, I prefer Johnny over Maverick; YMMV. VixSkin dils are sticky, but with lube, the shafts feel incredibly smooth and glide easily. If you like realism but don’t like much texture, then VixSkin is really the best.
  14. Lust Arts has three horror/fantasy dildos—a Frankenstein monster, a mermaid, and a dragon snout—where you choose your silicone firmness for both layers, an option that no other dildo maker offers.

Or, if you want luxury in dick-shaped form, check out the ultra-premium (and thick!) RealDoll RealCock 2 models: the original RealCock 2 and the RealCock2 DTF with Vac-U-Lock hole for harness wear. The RealCocks are unique in that their “Sil-Slide” technology allows the silicone to move and stretch a little more than all the dual-density dildos above.6 Plus floating squishy balls! 

Single-Density Dildos

Single-density silicone is what it sounds like: one layer of silicone (all the same firmness) makes up the whole toy. Here’s a listing of the toy firmnesses I have accurate information about (from the manufacturers themselves and usually from personal experience). I often give a shore strength when I have that info, but, as mentioned above, a toy’s shore doesn’t always exactly correspond with how squishy/flexible it feels. Also, I find that toys with a shiny, gloss finish tend to feel a little firmer than their matte finish counterparts in the same shore durometer.

First, the firmest toys (see a flexibility demo here):

Firm silicone dildos Tantus Flexible, Fun Factory, Fuze Silicone

From firm to not-quite-so-firm: Tantus Vamp; Fun Factory Boss; Fuze Silicone Alpha.

Next are dildos that I would classify as “medium firm,” between 10A and 19A shore. You can bend them in half if you’re really trying, but they won’t yield much while you’re thrusting fast. See a flexibility demo of these here.

Medium firm silicone dildos

Now it’s time for my personal favorite category: softer silicone dildos. Squish demo of the semi-soft to soft toys here, and of really soft options here.

Quality silicone toys that aren’t in this list (because I have no experience with them) are Pleasure Works’ single density (not Firm Core); Wet for Her; any of the various densities of Hole Punch “artisanal” toysDoc Johnson’s Platinum Edition single-density (not Truskyn); and Fleshlight’s Fleshlight Freaks (though the latter may use the same silicone as the Fleshjack Boys and Fleshjack Guys).

Figuring Out What You Want

Confused yet??? Most large toy companies only offer each toy in one firmness, so “trial and error” is the name of the game. With non-“fantasy” dildos, the cheapest way to get a general idea of whether you like moderately firm or soft is to check out one or two of the following silicone dildos under $30:

  1. Moderately firm (not rock solid, but definitely not soft): Blush Luxe dildos for more abstract; or Colours Pleasures Small, Colours Pleasures Thin, or Blush Ruse dildos for realistic options.
  2. Medium firmness: Blush Novelties Avant P1 through P3 (review here) and Temptasia Reina are just bordering on soft. I love the satiny finish on these toys, and the Avant models have good suction cups too.
  3. Pretty squishy: ColourSoft 5″, a soft but veiny suction cup dildo. For smoother and a little less realistic, check out the Tantus Vamp Super Soft (for lowest pricing, buy the Super Soft toys on Tantus’ own site, where 30% to 40%-off sales happen pretty often, especially around holidays).
  4. Cheap dual-density! Soft outside, plus firm core for a more erect-like effect. Two of the Neo Elite realistic dildos sell for under $30, while the abstract Real Nude Ergo Mini goes for only $25.

If you’re looking for a fantasy toy that can be custom-ordered in different densities, inexpensive options include: Strange Bedfellas’ size small toys; Damn Average’s smaller toys, which randomly appear in the Etsy shop in various firmnesses; and the small or mini sizes of many Exotic Erotics dildos go for $35–40 (without custom colors added).

Thanks for reading! I hope I’ve helped you find a dildo that has just the right amount of squish for your body. Happy testing!

If you found this guide useful, please consider buying through the affiliate links used in this post. You pay the same price as you would normally—or 10% less at some of my affiliates when you use my discount codes—and I’m able to keep writing detailed reviews & guides.

I strongly recommend Peepshow Toys, SheVibe, Good Vibrations, and Tantus. Lovehoney also carries a wide range of options, though many are not body-safe. See my Where to Shop post for even more options.

  1. Assuming you have their consent to this, of course!
  2. This description is about the non-vibrating Silicone Willy’s; the Silicone Willy’s 9 Inch Vibrating is a squishy 5A shore over the plastic rod that encloses the motor inside; while I hear that the 8 Inch Vibrating is firmer.
  3. 1.5A shore for Neo Elite vs. as low as 0.5A for parts of the Colours Dual heads.
  4. Don’t confuse these with Colours 2X dual density TPE, which is porous and shouldn’t be used long-term.
  5. Both VixSkin and NYTC Ellis’s heads don’t even measure on a shore A durometer, meaning they’re softer than 00-50.
  6. Actually, the RealCocks are made up of multiple layers of silicone: firm core, possibly some sort of silicone gel layer (unconfirmed), squishier outside, and more pigmented silicone on the surface to create all that detailed coloring.
  7. Plus or minus 2 degrees of shore durometer, because Fuze is very precise; my Alpha tests at 21A.
  8. I get 21A for the 7″ Curved.
  9. My Rivetor and Screw You test at 19A.
  10. Plus or minus 2 degrees in shore, again because variation occurs!
  11. Tantus confirmed this to me via email in February 2019.
  12. Excluding the Talon and Dragon Claw We-Vibe Tango vibe sleeves, which are harder.
  13. 00-50 silicone and 5A silicone feel a lot different; the 00 and A scales are not equivalent.
  14. Uberrime now offers “soft n squishy 00-50 as well as “soft” 5A, which are both technically “5 shore” but on different durometer scales; 00-50 is noticeably softer than 5A.
  15. For Split Peaches, add a note in the extra instructions box at checkout if you want anything other than the standard 20A silicone.
  16. Especially in fantasy-toy “small” or “mini,” like 2″ max. diameter or less. Toys with heavy heads or long, straight shafts will bend in half more easily than tapered toys.
  17. Though Kudu Voodoo does offer super-soft dildos in the softer 00-20 silicone.

One thought on “Silicone Dildo Firmness: Comparing Single- and Dual-Density Squish

  1. Kajal

    May 28, 2018 at 6:13am

    Dear,
    I am in search of a good silicone dildo for pegging for first timers. I very much liked your this article on firmness. I found VixSkin line esp. Goodfella very attractive. I was told that it will not work as it should be hard for anal or pegging. Are VixSkin products too soft for pegging? Should I go for Tantus products? Kindly give your valuable advice and guide me. Thanks in advance.

    • Author

      Felicity

      May 28, 2018 at 12:41pm

      I’m not sure who told you that, but tons of people love VixSkin for pegging! Give it a go if you’re interested.

  2. Jaim

    October 14, 2018 at 7:35pm

    I love your articles ,they are so helpful and erudite and I like anything that comes with explanations. It’s pertinent to know which dildo materials are safe and non-porous (silicone) and how they can be cleaned and your articles cover that information. I’m glad I came across this site.

    • Author

      Felicity

      October 16, 2018 at 5:17pm

      Thanks so much! I’m glad you enjoy my style! I do like to give as many details as possible (because I love details!) while still being readable. Please let me know if you have any specific questions!

  3. Stevie

    December 3, 2018 at 4:59pm

    This article was very helpful! However I can’t afford trial and error with such expensive items, unfortunately. I am looking for a toy I can comfortably pack with and also use. One that maybe I can bend to go between my legs and tuck in boxer briefs? I use an underwear harness. If you could help point me in the right direction I would love to hear your suggestions. I don’t know my preference for hardness, usually not too squishy but firm enough for play.

    • Author

      Felicity

      December 4, 2018 at 9:11pm

      Honestly I think there’s only one option that’s multipurpose enough to work well for both penetrative play and comfortable, not-too-bulgy packing, and that’s New York Toy Collective’s dildos with a bendable metal rod as their core, like Shilo here. Those are expensive is the thing. Anything else that bends easily is going to be necessarily be kinda squishy.

      • Stevie

        March 21, 2019 at 12:11pm

        Thank you! I have done loads of research here and I have come to the same conclusion. It definitely seems to be the best fit for what I want. Finally going to order so I will let you know the results!

  4. Jim ,Erica

    January 19, 2019 at 11:19am

    Thank you for posting all this information. extremely helpful. Just got vixskin 8 in 1.5 inch diameter suction cup . No smell body safe ,it cost 3 x as much as a stinky rubber one. Well worth it… any suggestions we are looking for longer 12 plus 1.75 max body safe of course but something a little softer than the vixskin for oral fun? Had a cyber glow that was real nice don’t know if it was body safe? Very soft and good for oral practice.

    • Author

      Felicity

      January 22, 2019 at 6:27pm

      Hi there, sorry for the slow response! Yes, Cyberskin isn’t great for prolonged use especially because it’s porous and will allow bacteria to start growing.

      Softer than VixSkin is hard to find: you’re going to want to go for an uncored, soft fantasy dildo, and even then, finding one that’s very long without being too thick is a big challenge. Maybe check out the SquarePeg Slink, or browse Mr. Hankey’s toys. With that length, finding a good, working suction cup is going to be extremely difficult.

  5. Jim ,

    February 4, 2019 at 8:01pm

    Lots of information to take in. Thanks again!!! Do you have any recommendations for a soft double end dildo ? Body safe.

  6. Jim ,Erica

    February 5, 2019 at 3:22pm

    Even after we read all of this info. Wow ! Who do you trust ? Found a double ended 16.5 inch Dorcel dildo. on 2 different sites both have different opinions? Bettys toy Box and Early to bed . Neither say body safe. but they say silicone. We don’t want a smell porous one. Now back to the best lube! 🙂

  7. Jim ,Erica

    February 5, 2019 at 3:23pm

    Even after we read all of this info. Wow ! Who do you trust ? Found a double ended 16.5 inch Dorcel dildo. on 2 different sites both have different opinions? Bettys toy Box and Early to bed . Neither say body safe. but they say silicone. We don’t want a smell porous one. Now back to the best lube! 🙂 Thanks

    • Author

      Felicity

      February 6, 2019 at 5:01pm

      I trust both of those. At any reputable retailer, silicone should be silicone, and all truly silicone sex toys are body-safe. It’s just that sometimes on Amazon or Ebay or Aliexpress or similar, companies will label toys as silicone that are actually TPE. You won’t have that issue at those two shops or at any of my favorite online sex toy sellers.

      Sliquid is really great! I use Sliquid Sassy most of the time.

      My apologies for missing your previous comment! Unfortunately there really aren’t many double dildos that are actually *soft* silicone. If the flexibility is what you’re looking for, then the Blush Ruse double dil is U-shaped (but not particularly soft).

  8. Dru

    April 8, 2019 at 3:00pm

    Would you say mr Hankeys medium firm is firmer then vixsen dual density? I have the outlaw but feel it’s to soft for anal

    • Author

      Felicity

      April 9, 2019 at 1:39am

      Hankey’s medium density is definitely harder than the super-soft outer layer of all VixSkin toys. It’s not really firm, but it’s not so, so squishy either. I think “medium” is a perfect name for it.

  9. Newbie

    April 9, 2019 at 6:31pm

    Girlfriend wants a first dildo and I was just about to pull the trigger on the ColourSoft 8″ when I found the Colours Dual Density 8″. I’m in decision paralysis! Suggestions? I also saw on peepshow that the the dual density is 1.8 in diameter vs the soft which is 2.0 in diameter. Is that true, or should I assume they are the same size? Your articles are super helpful!!

    • Author

      Felicity

      April 9, 2019 at 8:27pm

      I would be in decision paralysis too!!! I’ve had both for about three months now, and it’s like flipping a coin a lot of the time.

      So in re the sizing, the Colours Dual is slightly smaller. It’s really about 1.85″ diameter, while the ColourSoft is 1.9 something. It’s not a huge difference but if you have both side by side and are looking really hard, you might notice.

      I do really like the extra squish in the head with the Colours Dual, since its outer layer is about 1A shore vs. the 6A of the ColourSofts. I’d say the Colours Duals feel more realistic overall except for that the fact that the balls have the firm core too, so it’s unusual to me how hard they are.

      • Newbie

        April 10, 2019 at 5:40pm

        I don’t know how you stay so on top of your comment threads. It’s amazing. So based on what you’re saying, I’ll probably go with the Dual, unless there is any benefit of getting the Soft for a beginner. THANKS!

  10. Newbie

    April 12, 2019 at 10:21pm

    One last question – as I still haven’t pulled the trigger on the Colours Dual or Soft. My own diameter is 1.75″, which she has no problem with (no warm up needed, etc). Considering that the Dual is 1.85″ and the Soft is 1.9″, is that a big enough difference from my own girth for a significant difference? The goal of buying the toy was to incorporate something thicker for more fullness / stretch. If you were us, would that factor into whether or not you chose the Dual vs Soft (or something else entirely like the 2″ Jammy Ruse – which I wish was softer)?

    • Author

      Felicity

      April 14, 2019 at 12:46am

      I’d probably go with the ColourSoft, knowing that. Also, I like that (although the vein texture is still pretty apparent) the ColourSoft doesn’t absorb quite as much lube/isn’t quite as sticky as the Colours Dual.

  11. V

    May 5, 2019 at 5:56pm

    Your shore strength guides are so helpful- especially the corresponding youtube videos, it’s a lot easier to get the idea from seeing that from description (for me anyway)

    • Author

      Felicity

      May 5, 2019 at 9:45pm

      Awesome! I’m glad I added the videos, you’re right, it’s nice to *see* the toys sometimes instead of just reading descriptions.

  12. knowyourbody

    May 6, 2019 at 7:50pm

    This one is one of your articles I often come back to. It is so helpful when wondering if a toy would be a good option for me. I also really appreciate that you added the videos. It is helpful to see the squish and the toy bends under your fingers. Happy birthday to your blog!

    • Author

      Felicity

      May 6, 2019 at 9:11pm

      Thanks for the kind words, and I’m glad the guide has helped!!!

  13. J

    May 24, 2019 at 2:47pm

    This blog post is SO helpful to me. My partners and I own a bunch of relatively cheap silicone dongs (all shaped like human peens) and then one expensive Bad Dragon fantasy dong. We want to find a realistic pale flesh-coloured dildo that’s around as soft as the Bad Dragon one because the others we own are just so firm it kind of hurts to get pounded with them. I’ve been looking through your list of soft dildos and most of them seem to be weird colours or fantasy shapes, which is a shame. Do you know of any dildos that are realistically shaped and coloured (or at least semi-realistic) and still relatively soft?

    Thanks so much!

    • Author

      Felicity

      May 28, 2019 at 11:08pm

      Yay, glad to hear it’s helpful! The outer layer of VixSkin is comparable to BD’s soft firmness (but with a firm core). For G-spot or prostate, Mustang is the best.

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