Dialed for summit success and darn near perfect for almost any alpine adventure, rely on this versatile layer for warmth without weight during your next backcountry mission. The light (60 g) synthetic insulation is protected by the durable nylon ripstop exterior that's finished with a DWR (durable water repellent) treatment to shed light moisture upon contact. Wind-resistant TNF™ Apex Aerobic stretch underarm panels increase your range of motion when sending. This compressible jacket stows in the zippered hand pocket for easy carry as an emergency layer. This product contains at least 90% bluesign® approved fabric -- a standard for environmentally responsible production.