100% Nylon Imported Zipper closure WATERPROOF PANTS FOR MEN: These Outdoor Research men’s pants are built for lightweight breathable waterproof comfort during ski tours and other alpine sports. Their outer thigh vent easily vents out excess heat buildup, without removing them. ASCENTSHELL TECHNOLOGY: The AscentShell technology of these snowboard pants for men offers complete protection against ice, snow, wind, and other weather conditions. They are made of 88% nylon and 12% spandex with a 100% polyester 50D knit backer. WATERPROOF & WIND RESISTANT: The waterproof and wind-resistant construction of these cold weather pants makes them durable for different outdoor adventures. They have a stretch mesh internal gaiter with a power strap slot. MOVEMENT-MIRRORING STRETCH: Featuring a movement-mirroring stretch, these winter pants for men offer you a full range of movement. The super breathable fabric of these men’s pants keeps you comfortable and dry all day. OUTDOOR RESEARCH: We built a company from a feeling: the urge to get out. It's what drives us. Our tribe is devoted to exploring our outdoor passions and challenging ourselves in the mountains, water, and deserts of the planet we love so much.