A Comprehensive Guide to Sex Doll Skeleton: Definition, Types & How to Choose

The sex doll’s skeleton is a key component of a real love doll as it determines how the flexibility of your doll.

Sex dolls have come a long way in the last decade. If inflatable sex dolls are the mainstream love doll products in early 21th century, then they have been gradually replaced by the new solid sex dolls like silicone and TPE sex dolls, as they come with better realism and longvevity.

Ultimately, it’s the development and innovation of both material and manufacturing tech that contribute to better sex doll products. And among the rest, skeleton is one of most basic yet essential component to put the real doll move forward. That’s because only when a doll has flexible strong enough internal skeleton can it pose like a real person, helping getting sizzling sex life greatly. Traditional blow-up or homemade dolls don’t have such a skeleton inside.

If you’re a green hand, this guide will explain sex doll skeleton in detail and impart tips on how to choose the right type of doll skeleton.

Definition of Sex Doll Skeleton

For a real person, the skeleton is the internal framework of bones that supports the whole body. We know that a normal human’s skeleton is composed of 206 bones, which are connected by joints, ligaments, and cartilage for body support, balanced movements, organs protection, etc.

Similarly, the sex doll skeleton refers to the inner framework of a solid doll which supports the doll and help it stand and act like a real man or woman. More often, the skeletons are made of materials like metal and  plastic and have different levels of articulation. Therefore, when choosing or customizing a sex doll, you might see those skeletons below.

Types of Doll Skeleton

Sex dolls don’t have the same skeleton. For example, some skeletons are fully articulated with movable joints while some are more limited with inferior poseability. Here we’ve gathered all possible skeleton names you may come across online for your referrence. After undersatanding what they are, you will know how to choose a sex doll better.

Normal or Standard Skeleton

Standard skeleton is the most basic skeleton type that requires no production tech for doll factories. Typically, the normal skeletons can only do easy postures with the head, hands, waist, and legs, such as moving head/hands/legs front & rare, rotating head and elbows, bending forward or backword, tilting left or right through small angles, having knee joint front or rear etc. More complicated actions like shrugging, bending elbows and kees over 90 degree, doing hand gestures are not supported by standard doll skeleton. So, if you want a sex doll that’s able to pose more flexibly, you’re suggested to own an upgraded skeleton.

Upgraded EVO/Flexi/Yoga Skeleton

Most doll makers name their enhanced sex doll skeleton as EVO(short for evolution) skeleton, for example Irontech Doll, Piper Doll, Doll Forever, Dollhouse 168, and Sanhui Doll. You may also meet certain other names like Flexi skeleton and yoga skeleton from other doll brands.

As a matter of fact, they all belong to fully articulated skeleton and the names don’t have specific meanings for functions. You can simply regard them as marketing terms used by doll companies to showcase their premium skeleton, which have better functional shoulder, elbow, waist, leg and knee joints to do a greater range of motions. Rotating, bending over, twisting, posing W position or other yoga poses with legs become more easy and smooth for a doll. To have a doll with this kind of skeleton, posing her/him in any sort of dynamic poses is as easy as ABC.

Note: In most cases, EVO skeleton doesn’t contain the articulated fingers feature. If you need a pair of hands available for all hand guestures, please select or customize the doll with articulated fingers (varying from doll brands).

Standard vs. EVO/Flexi/Yoga Upgraded Doll Skeleton

When comparing ordinary love doll skeletons with upgraded ones, the winner surely goes to the EVO/Flexi/Yoga skeleton. As an important component of high-quality real love dolls, better skeleton means higher realism, more fun, and longer lifespan. Below is a simple comparison between the two love doll skeletons.

The most recent skeleton names of some top sex doll brands in 2024.

FAQs about Sex Doll Skeletons

1. What’re the real doll skeletons made from?

We’ve mentioned that the skeletions can be made of metal and plastic, however, the quality TPE and silicone sex dolls are commonly made of metal (stainless steel or aluminum) at present, as it provides a more sturdy and durable framework.

2. Do I need to an upgraded EVO/Flexi/Yoga skeleton?

It depends on your actual demands. If you’d like to own a more flexible doll lover, then an EVO/Flexi/Yoga skeleton is a suggested feature. If not, you might feel disappointed with the relatively stiff body during bed time.

Some doll brands actually don’t offer skeleton options to choose from, but upgrade all of their models with the next-generation skeleton. Under the circumstance, you don’t have to consider this question. Free skeleton upgrade is better than not.

3. Are the advanced (EVO) skeletons the same?

Not exactly. Although nearly all reputable sex doll brands have upgraded their skeletons in the recent years, the enhanced skeletons are not exactly the same and the quality depends on the specific manufacturer and doll models. You can read or ask for their skeleton details respectively and compare which one is more suitable for you.

4. Are the articulated fingers necessary partner of upgraded skeleton?

No. Skeleton and fingers are often two seperate parts of a sex doll. When buying an in-stock doll, you are given a pre-optioned doll with fixed features, so check the skeleton and finger details if you have specific preferrence. If you are customizing a sex doll, you are probably free to determin what kind of sex doll skeleton and fingers you like, some of which require extra fee.

Also, the articulated hands might be different from doll bands. For example, WM Doll has recently upgraded to ball-joined hands.

5. How to take care of the doll’s skeleton?

No matter your doll has standard or upgraded skeleton, to maintain the doll for years of normal use, please remember that be gentle to your lover, don’t apply too much pressure on it. Also, when cleaning a sex doll, don’t put the head, neck, foot, and other possible places where water can access to the inner skeleton too wet because it might cause unexpected damage.