STPE Series Introduces a New Custom Option: LSTPE Lightweight Upgrade
Introduction
Full-size sex dolls today are primarily made from two types of materials: silicone and TPE/STPE.
As silicone technology continues to evolve, it has become increasingly popular for its refined overall feel, lower oiliness, and premium finish. However, TPE/STPE still offers advantages of its own.
Compared with silicone, TPE/STPE has unique advantages in intimate contact and use, thanks to its softer and more elastic feel. For users who place greater emphasis on softness, intimacy, and a more lifelike tactile experience, STPE remains an important option.
For full-size bodies, however, weight has always been one of the key factors affecting everyday usability.
That is why we developed the new LSTPE Lightweight Option.
The goal is simple: retain the soft, flexible feel that users expect from STPE while reducing overall body weight, making the sex doll easier to move, dress, reposition, and handle in daily use.
What Is LSTPE?
LSTPE is a lightweight structural solution developed specifically for STPE bodies.
It is not a completely new outer material. Instead, it builds on the existing STPE body structure by introducing a specially designed lightweight foam core inside the body to reduce overall weight.
The concept is similar to the lightweight construction used in silicone bodies: reduce internal mass while preserving the external shape, proportions, and familiar tactile feel as much as possible.
At present, the following three body models support the LSTPE option:
| Body Model | Standard Weight | LSTPE Weight | Weight Reduction |
| 157H | 41 kg | 31 kg | 10 kg |
| 161F | 35 kg | 31.6 kg | 3.4 kg |
| 163E | 37 kg | 26 kg | 11 kg |
The maximum current weight reduction is up to 11 kg.
The amount of weight that can be reduced varies from one body to another because each model has a different shape, internal structure, and amount of usable space for lightweight construction.
As with lightweight silicone bodies, the addition of an internal foam core may also result in slight variations in final product weight. However, we follow a defined production and shipping standard, and the actual weight variation is controlled within 5%.
Key Advantages of LSTPE
01 | Lighter and Easier to Handle
The most immediate benefit of LSTPE is a lower overall body weight.
A lighter full-size body is easier to move, dress, undress, and reposition. The difference is especially noticeable with the 157H and 163E bodies, which are approximately 10 kg and 11 kg lighter respectively.
With a full-size sex doll, even a reduction of several kilograms can make a meaningful difference in everyday handling.
02 | Retains the Soft Feel of STPE
Reducing weight does not mean sacrificing softness.
LSTPE retains the softness, elasticity, and natural deformation characteristics of standard STPE. Areas such as the abdomen, waist, thighs, and hips still provide the familiar soft and flexible feel associated with STPE.
Lighter in weight, while keeping the softness that defines STPE.
03 | Drier Surface, Less Oiliness, Easier Maintenance
LSTPE also retains the relatively dry, low-oil surface characteristics of STPE.
Compared with traditional TPE, it is less likely to feel noticeably oily during regular handling. This can make dressing, changing outfits, and routine care more convenient.
For long-term ownership, a drier surface also helps make everyday maintenance easier and more comfortable.
04 | Lightweight Construction Without Sacrificing Joint Mobility
The internal foam structure used in LSTPE does not interfere with normal skeletal movement.
Just like our lightweight silicone bodies, the joints can still be moved and adjusted normally, allowing the doll to retain its original posing flexibility while reducing overall weight.
05 | Compatible with Silicone Heads
LSTPE can be paired not only with STPE heads, but also with selected silicone heads.
At present, we have successfully completed color matching between a Light Tan LSTPE Body and a Light Tan Silicone Head.
Because silicone and STPE are different materials, the same skin tone name may still appear slightly different once produced. To minimize visible color differences between the head and body, we make additional color adjustments specifically for cross-material combinations.
Other skin tones are still undergoing matching tests, and we plan to gradually expand the available LSTPE × Silicone combinations in the future.
Who Is LSTPE For?
If you enjoy the soft, elastic feel of STPE but find a full-size body heavier than you would prefer, LSTPE may be a worthwhile option.
It is especially suitable for users who want a better balance between softness and manageable weight, those interested in trying a Silicone Head × STPE Body combination, and first-time full-size sex doll owners who want easier handling and repositioning in daily use.
A Lighter STPE, with More Possibilities
The purpose of LSTPE is straightforward:
Reduce body weight while preserving as much of the original STPE softness and feel as possible.
The body models currently available with the LSTPE option are:
157H · 161F · 163E
If you have always liked the feel of STPE but have been concerned about the weight of a full-size body, LSTPE offers another way to enjoy the material.
SEDOLL will continue expanding the range of LSTPE-compatible body models and skin tone combinations in the future.
Which body would you most like to see added to the LSTPE lineup next?
FAQ
No.
LSTPE retains the softness, elasticity, and natural deformation of standard STPE. However, because it uses a specially designed internal foam structure, the exact feel may vary slightly between different areas of the body.
No.
The changes are primarily made to the internal structure of the body. The original measurements, circumferences, and overall proportions remain unchanged.
No.
The lightweight construction does not affect the body’s original standing function. The available standing configuration and usage method remain the same.
Based on our current testing, we have not observed any significant impact on durability.
LSTPE has undergone extended testing, and so far we have not found that the lightweight internal structure causes any noticeable reduction in normal durability.
As with any sex doll, actual service life will still depend on factors such as usage habits, frequency of use, and routine care.
Not yet.
At present, we have completed skin tone matching for the Light Tan LSTPE Body × Light Tan Silicone Head combination.
Other skin tones are still undergoing color adjustment and testing. Additional combinations may be introduced in the future depending on the matching results.
Yes.
LSTPE is a paid optional upgrade. All body models that currently support LSTPE use the same upgrade price.
Yes, as long as production has not yet started.
If your order has not entered production, please contact us with your order number. We will confirm whether the selected body supports LSTPE and assist you with adding the option.
Yes.
LSTPE is generally compatible with most of the customization options already available for standard STPE bodies and does not normally conflict with features such as Auto-suck Vagina.
The final available configuration will still depend on the specific body model and the combination of selected functions.