PerfectFit Fat Boy Thin Sheath 5.5
Product Details
We are thrilled to introduce the new Fat Boy™ line of sheaths, which includes our classic Fat Boy™ Thin and the Fat Boy™ Ultra Fat–formerly known as our super popular Fat Boy Sport–plus two new textured models, the Fat Boy™ Checker Plate and Fat Boy™ Micro Rib.
All are packaged in all new vertical storage packaging. The two newest models, the Checker Plate and Micro Rib, are both designed and proven to give both partners pleasure.The Checker Plate texture is the most stimulating for the receiver, while the Micro Rib texture provides a more gentle stimulation. Both are available in three size options.
Note: We no longer refer to the Fat Boy™ products as "extenders," but instead use the term "sheaths." And, FYI: We invented this category of sex toys! A Little Fat Boy™ History The Fat Boy™ was the first soft stretchy sheath ever conceived. It was born from the desire to have both partners reach orgasm while using an “Extender”. This innovation started an extender revolution, and the industry has aptly called this new concept “Sheaths.” To this day, 10 years after we first made the first sheath, the Fat Boy line is a best seller and continues to be recognized as one of the best sex toys made. Men’s Health named it one of the best sex toys of 2017! What made this possible, was the development of a remarkably soft, silky and stretchy material we call SilaSkin™. The first TPR/Silicone to ever be used in production, this unmatched and seriously sensuous material has become a building block for many other award-winning products by Perfect Fit.
Our ultra-real feeling cock sheaths are designed to give both partners intense, eye-rolling pleasure. For the receiving partner, the Fat Boy™ adds girth, while for the wearer, with its interior nubs and ribs, it also acts as a stroker. The Fat Boy™ is extremely comfortable, surprisingly easy to get on and off and stays in place thanks to its closed tip and a thick loop that wraps around the base of the scrotum, which gives a pleasurable tug to a man’s balls during penetration or stroking.
The feedback from the tens of thousands of Fat Boy™ customers is consistent: Women are crazy for the orgasm-triggering stimulation from the added girth. Men dig the stroker action with or without a partner. Women also like it over the hand as a manual masturbator. And anal bottoms enjoy the thrill of taking a daringly massive, yet remarkably comfortable cock.
CS-02C-N Fat Boy™ Ultra Fat Sheath 5.5” - Medium
CS-01C-N Fat Boy™ Ultra Fat Sheath 7” - Large
Both add 1" girth.
CS-05C-N Fat Boy Thin Sheath 5” - Medium
CS-03C-N Fat Boy Thin Sheath 6.5” - Large
Both add 0.5" girth.
CS-20C Fat Boy Checker Plate Sheath 5.5” - Medium
CS-21C Fat Boy Checker Plate 6.5” - Large
CS-22C Fat Boy Checker Plate Sheath 7.5” - Extra Large
All add 0.7" girth.
CS-25C Fat Boy Micro Rib Sheath 5.5” - Medium
CS-26C Fat Boy Micro Rib Sheath 6.5” - Large
CS-27C Fat Boy Micro Rib Sheath 7.5” - Extra Large
All add 0.7" girth.
Clean up: Wash thoroughly with mild soap and water.
Safety: This product is not a contraceptive or a substitute for a condom. Safe with water based lubes. This product is not compatible with latex products. Please store separately.
Size & Fit
Every body is unique — and every brand fits differently.
For the most accurate guidance, please check the size guide link near the Add to Cart button, along with any fit notes shown in the product images or description (when applicable).
Some styles offer natural stretch or sculpting support, while others are designed for a more structured silhouette.
If you’re between sizes, consider the fabric, the cut, and how you prefer your pieces to feel.
Choose the fit that makes you feel confident.
Materials
Our collections are crafted from a range of premium fabrics chosen for comfort, movement, and sensuality.
Because we work with multiple global brands, exact materials vary by product.
You’ll find the specific fabric composition listed in the product description or additional images.
Expect soft-touch blends, breathable weaves, supportive stretch, and textures designed to feel as good as they look.
Quality you can feel — in every detail.
Care & Maintenance
Treat your pieces with the same care you give your confidence.
Each brand provides its own care instructions, so always refer to the details shown in the product images or description.
As a general guide, gentle washing, cool water, and mindful storage help preserve the shape, softness, and longevity of your favourites.
Handle delicate fabrics with care, avoid harsh detergents, and allow items to air dry whenever possible.
Your pieces will love you back when you treat them well.
Shipping & Authenticity
We work with trusted suppliers and verified brands to ensure every item is genuine and quality‑checked before it’s sent out.
Delivery date ranges vary by product, and your exact estimate — including any available faster options — is shown clearly at checkout based on the items in your cart.
All orders include full tracking for peace of mind, and your purchase is protected from dispatch through to delivery.
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