WARMTH & STRETCH Warmest and stretchiest boy"s wetsuits. 100% Super stretch Japanese limestone-based neoprene " lighter" warmer" softer" stretchier" easier to put on and take off and allows for more freedom of movement. Thermal Fever Fiber lining with more stretch insulates heat and dries incredibly fast. Dope Dyed Fabric- Softer eco-friendly anti-fade stretch jersey laminated with AquaA eco-friendly water-based lamination is completely solvent free. Made by Bluesign approved mills. FIT Tailored fit - anatomically correct engineered body lines allow for unrestricted performance and warmth DURABLE & WATERTIGHT Chest-zip entry minimal bulk with contoured watertight design. Tripled glued" blind stitched seams. Vissla super stretch Neo 3.0 tape allows for maximum seam sealing while having unrestricted stretch and comfort. Easy access secure key cord. Knee pad Upcycled Supratex abrasion resistant for flexibility and strength. Glideskin on the neck seals to skin to prevent flushing.