-Back Zipper with adjustable Velcro wrap collar -Easy on/off ankle zipper system with Glideskin lined ankle dams -Made with ThermoBamboo, a blend of bamboo charcoal fibers and recycled polyester fibers provides excellent heat retention and helps improve warmth -UltraStretch Neoprene XCEL's stretchiest, softest, most durable, and most lightweight neoprene -GlideSkin Wrist inner lining in the velcro wrap collar, ankle dams, and wrist seals form an excellent seal against your skin -Glued and blindstitched seams. Fully seam sealed constructions keeps water out, with inner reinforced stress point for enhanced durability -DuraFlex Knee Panels Pre-bent, contoured, articulating knee panels, which help minimize wear-and-tear