It has a simple and sleek feel, but the Marmot Women's Spire Jacket is seriously high tech and fully equipped for any alpine adventurebe it mountaineering, climbing, or backcountry skiing. For starters, it provides bomber weather protection via waterproof, breathable, three layer Gore Tex and fully taped seams. A hood is standard on any tech shell, but this gale force, helmet compatible head shelter features a fine fitting ERG adjustment system and a laminated wire brim to keep precipitation, wind, or sun out of your eyeballs. The Spire has PitZips underarm vents and a zip off powder skirt so you can go streamlined when it's not in use. Even the hand pockets have smart design behind them: they sit above a pack belt or harness and are laser drilled for added breathability. For serious performance, a shell has to allow freedom of mobility, and of course Marmot gave this jacket its Angel Wing Movement for unhindered arm movement, imperative on a climb and always appreciated. And its hip length adds coverage, which is handy in a harness. No small thing if you've ever chafed your chin, it also has a DriClime lined chin guard. Full accommodation, well thought out, and yet awesomely simple.