WARMTH & STRETCH: 100% Super Stretch limestone based neoprene. Light warm soft easy to put on and take off allowing for more freedom of movement. Thermal Brain Fuzz lining insulates heat and dries fast. Dope Dyed Fabric - a softer eco-friendly anti-fade stretch jersey made by Bluesign approved mills. FIT: Tailored fit is anatomically correct with engineered body lines and minimal seams for unrestricted warmth and performance. DURABLE & WATERTIGHT: Watertight chest zip entry for minimal bulk. Vissla's super stretch Neo 2.0 tape allows for maximum seam sealing without compromising stretch and comfort. Triple glued double blind stitched seams. Liquid taped cuffs and seals prevent flushing. Supratex abrasion resistant knee pads provide strength and flexibility. Glideskin on the neck seals to skin to prevent flushing. Easy access secure key cord.