Stay dry, stay warm, stay in. Featuring Xcel's waterproof, flexible Drylock Zip System, with the zipper flap attached at one shoulder for a more watertight fit. SmoothSkin elastic shoulder hem along open zipper flap edge for a contoured, flexible seal. Overlapping inner front and back crossover neck panels for a durable, easy on/off solution. Engineered, seamless, Drylock wrist seals grip, prevent flushing, and seal warmth in. Inner geometric Taitex ankle seals grip and seal. QDF Quick-Dry Fiber exterior promotes maximum warmth. "Dual barrier" air-chambered insulating Airprene plus ThermoCarbon inner chest; ThermoCarbon inner lower body; wind-resistant Texture Skin outer chest. Durable, contoured, 4-way stretch DuraFlex knee panels. 100% UltraStretch.