The Mammut Eiger Free Advanced HS Hooded Jacket pairs PFC-free GORE-TEX ePE with underarm zip vents, so we stay dry from snow and slush on the outside while dumping heat and moisture on the way up the skin track. Elevated pockets sit above a harness, hipbelt, or day pack, keeping gear accessible without digging under a strap. A helmet-compatible hood and zip-off powder skirt adjust with the terrain, whether we're bootpacking a couloir or charging a fast descent. What Our Gearhead(R) Experts Are Saying:"I skinned for two hours with the pit zips open and never overheated, then zipped them shut for a wet, fast descent and stayed completely dry. That's the shell doing its job at both ends of the same lap."