--- title: "Perfect Fit Fat Boy Thin 4.0 - Clear" url: "https://phareros.com/product/perfect-fit-fat-boy-thin-4-0-clear/" type: "product" brand: "Perfect Fit Brand" price: "39.99" currency: "USD" availability: "in_stock" phareros_score: "44" image: "https://imagedelivery.net/yMyw0dLbvNU5PSeclkTipg/wp-652861-70366a3535b70684/public" --- # Perfect Fit Fat Boy Thin 4.0 - Clear - **Price:** $39.99 - **Availability:** In stock - **Brand:** [Perfect Fit Brand](https://phareros.com/brand/perfect-fit-brand/) - **Category:** [Extensions](https://phareros.com/product-category/penis-enhancement/extensions/), [Penis Enhancement](https://phareros.com/product-category/penis-enhancement/) - **SKU:** PF-CS-06C - **GTIN:** 851127008864 - **Product page:** https://phareros.com/product/perfect-fit-fat-boy-thin-4-0-clear/ - **Image:** https://imagedelivery.net/yMyw0dLbvNU5PSeclkTipg/wp-652861-70366a3535b70684/public ## Phareros Score: 44/100 Body safety and quality, rated only on available evidence. Evidence: Popular. Among our most-bought. How the score works: https://phareros.com/phareros-score/ ## Specifications - **Weight:** 0.175 lbs - **Dimensions:** 5.5 × 1.5 × 7 in - **Gender:** Unisex - **Manufacturer:** Perfect fit brand - **Product Type:** Penis Enhancement - **Packaging:** Bag - **Color:** Clear - **Material:** Silicone ## Description Finding that sweet spot between extra girth and total comfort is an art form, and Perfect Fit has mastered the technique with this clever design. If you are wary of jumping into a massive sleeve that might feel overwhelming for your partner, the Fat Boy Thin offers a sophisticated middle ground. It provides a subtle, intentional increase in thickness without the intimidating bulk, making it a brilliant choice for those exploring enhancement for the first and only time. The exterior remains smooth to maintain a natural glide, while the interior features a unique combination of ribs and ball textures to ensure every movement feels impactful. #### Key Features - Revolutionary SilaSkin material provides an ultra-real feel with incredible softness and stretch. - Adds exactly.5" (1.27 cm) of girth for a "just enough" sensation that enhances pleasure without being overwhelming. - Features a 4" (10.2 cm) long sheath designed to fit comfortably over your anatomy. - Integrated scrotum loop provides a pleasurable, gentle tug during thrusting or penetration. - Smooth exterior texture paired with an internal rib and ball texture for multi-sensory stimulation. - Crafted from a high-quality blend of Silicone and Thermoplastic Rubber (TPR). - Surprisingly easy to slip on and take off for seamless transitions into play. - Clear, transparent design that offers a sleek and modern aesthetic. The magic of this sleeve lies in its proprietary SilaSkin material. This advanced blend of silicone and TPR (Thermoplastic Rubber) is engineered to be exceptionally stretchy and soft, mimicking the velvety texture of skin with startling accuracy. Because it utilizes an elastomer-based composition rather than traditional PVC or "jelly" materials, you can enjoy a much smoother, phthalate-free experience that feels premium against the body. The flexibility of this material allows it to conform to your unique shape, ensuring that the added.5" of girth feels like a natural extension of yourself rather than an external attachment. To ensure your new favorite accessory lasts, proper care is essential. Since this product is made from a blend containing silicone and TPR, it is important to avoid using any latex-based products alongside it; instead, stick to high-quality water-based lubricants to maintain the integrity of the SilaSkin surface. After each use, simply wash the sheath with mild soap and warm water. When storing, keep it separate from other silicone toys to prevent any chemical reactions or "melting" between surfaces. For the most accurate fit, always measure your length from base to tip while erect before selecting your gear. Elevate your intimate repertoire with a subtle boost in sensation and a touch of textured excitement. Discover more premium enhancements and bedroom favorites when you shop at [Phareros.com](https://phareros.com/) . ## Frequently asked questions #### What materials are used to make this sleeve? This accessory is crafted from a blend of Silicone and Thermoplastic Rubber (TPR), featuring the proprietary SilaSkin material for an ultra-real feel. #### How should I clean and store the product? After use, wash it with mild soap and warm water. When storing, keep it separate from other silicone toys to prevent any chemical reactions or 'melting' between surfaces. #### What kind of lubricant is best for use with this sleeve? To maintain the integrity of the SilaSkin surface, always stick to high-quality water-based lubricants when using this product. #### How much girth does this sleeve add? The clever design adds exactly.5" (1.27 cm) of girth, offering a subtle enhancement that is perfect for those exploring added thickness without feeling overwhelmed. ## Similar products - [Perfect Fit Fat Boy Thin 5.5" - Clear](https://phareros.com/product/perfect-fit-fat-boy-thin-5-5-clear/) — $47.95 - [Perfect Fit Fat Boy Thin 6.5" - Clear](https://phareros.com/product/perfect-fit-fat-boy-thin-6-5-clear/) — $59.95 - [Perfect Fit Fat Boy Original Ultra Fat 5.5" - Clear](https://phareros.com/product/perfect-fit-fat-boy-original-ultra-fat-5-5-clear/) — $59.95 - [Perfect Fit Fat Boy Original Ultra Fat 7.0" - Clear](https://phareros.com/product/perfect-fit-fat-boy-original-ultra-fat-7-0-clear/) — $71.95 - [Perfect Fit Fat Boy Micro Ribbed Sheath 7.5" - Clear](https://phareros.com/product/perfect-fit-fat-boy-micro-ribbed-sheath-7-5-clear/) — $59.95 --- ## Buying from Phareros Free US shipping on orders over $49. Orders ship in plain packaging with no external markings. 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