IN THE ZONE. Brave alpine extremes, rough terrain, and relentless rain from trailhead to summit with a lighweight zoned-fabric design that boosts comfort, mobility, and durability where you need it most. 3L GORE-TEX(R) C-KNIT(TM) fabric is waterproof and windproof with an ultra-breathable knit backer and water-shedding C0 DWR (Durable Water Repellent). Durable plain-weave above the chest pairs with a seamless shoulder for increased packability, range of motion, and leakproof performance under a heavy pack. Ripstop fabric below the chest helps prevent snags and tears on rock, ice, or trees while offering lightweight breathability for high-output ascents. Two-way pit zips allow you to cool down quickly on grueling pitches, while a two-way center-front zipper and higher-placed hand pockes are essential for use with a harness and pack hip belt. VELCRO(R) adjustable cuffs, adjustable drawcord hem, and an adjustable, helmet-compatible hood ensure rogue raindrops and gusty peak winds don't sneak in.