Neoflex 100% Microcell Limestone CR Neoprene. Extremely soft and flexible for a high performance fit. 3D Sculpted anatomical fit. Kevlar and Duratex reinforced embossed kneepad. Double Zipper Seal System - New advanced seal system in the back reduces waterflow and provides insulation. The built in spine-pads provide high comfort and added warmth in the back area. Duratex abrasion protection in the seat and on the elbows. Dual Computer Strap Anchor keeping your computer in place. EXTEND Thermal inner-lining provides a very soft, warm and comfortable feeling also restricting waterflow inside the suit. Two streamlined expandable and very flexible leg-pockets. Comfort Zipper in the front to relieve stress on the surface. Double seals at arms and legs. Inner-seals in smooth glide-skin to be folded inwards for maximum restriction of water flow. Reflective Logo placed on the left upper arm for high visibility.