The Perfect Fit Brand Fat Boy Thin is the newest in the Fat Boy line and a great choice for men seeking an ultra-realistic penis sheath. This penis extender adds welcome weight and girth without becoming too big to handle, slipping on and off easily. Made from stretchy SilaSkin with soft nubs inside, it also doubles as a masturbation toy for solo or partnered play.
Key Features
SilaSkin material: A blend of silicone and TPR with an incredible stretch factor and a soft, realistic feel.
Adds girth: Adds approximately 1.35 inches (3.42 cm) of girth, while the soft material compresses for comfort.
Ultra-real feel: The thin design delivers a natural, weighty sensation rather than oversized bulk.
Textured interior: Soft nubs inside feel like gentle padding and add sensation during solo use.
Easy to wear: Goes on and off easily and stays in place.
Why Choose the Fat Boy Thin?
The Fat Boy Thin appeals to men who want a noticeable boost in girth without a bulky extender. Because the SilaSkin is soft and compresses, the added size stays comfortable for the receiver.
Product Specifications
Brand
Perfect Fit Brand
Product Type
Penis sheath and extender
Material
SilaSkin (silicone and TPR blend)
Colour
Clear
Size
Overall length 6.0 in (15.24 cm); insertable approx 0.9 in (2.28 cm) shorter; adds approx 1.35 in (3.42 cm) girth
Power
Not applicable – manual
Water Resistance
Not specified by manufacturer
Included
Not specified by manufacturer
Suitable For
Adults; not a contraceptive device
How to Use and Care
Apply a little water-based lubricant inside the sheath before use, as this material is not compatible with latex. Ease it on until it sits comfortably; the stretchy SilaSkin holds it in place. Please note it is not a contraceptive and offers no protection against pregnancy or infection. Afterwards, wash it with warm water and mild soap, dry and store it away from heat.
Discreet UK & EU Shopping
Your order arrives in plain, unbranded packaging with nothing to hint at what is inside. We deliver discreetly across the UK and EU so you can shop in complete confidence.
Frequently Asked Questions
Is the Fat Boy Thin a contraceptive?
No. It is an intimate toy and sheath only, and provides no protection against pregnancy or sexually transmitted infections.
How much length and girth does it add?
The overall length is 6.0 inches (15.24 cm), with the insertable portion around 0.9 inches (2.28 cm) shorter, adding roughly 1.35 inches (3.42 cm) of girth.
Add the Perfect Fit Brand Fat Boy Thin to your basket for a realistic, comfortable boost in girth.
