The Arc'teryx Women's Alpha SV Jacket has a durable N80p X Gore Tex Pro shell that withstands the kind of horrendous weather that rends tents to tatters and forces the Yeti to seek shelter. Whether you're a medic on a search and rescue chopper, guiding a group of novice ice climbers, or backpacking through the Olympic National Forest, the e3D design and uber tough Gore Tex Pro fabric lets you move the way you want, and stay protected from the elements, too. N80p X Gore Tex Pro is a mouthful, and hardly scratches the surface of this amazing fabric literally. Made from tightly woven nylon, this guaranteed waterproof and breathable fabric resists abrasions, scratches, and general horseplay with nary a scrape. The dense construction minimizes exposed strands of fabric, reducing the potential for damage from rock faces, tools, or just the occasional cold shoulder. The smooth surface of this uber techy fabric won't get roughed up from harness straps, nor will it cause your fabric purses to pill when you wear it around town. This jacket shows why it's the alpha in the pack with all of the bells and whistles complementing the Gore Tex shell. Arc'teryx's e3D design gives you freedom to move without ripping the jacket or exposing more of you than absolutely necessary. The hood is helmet compatible so you can protect your melon from the elements and not just falling rocks or oblivious skiers. You can access the two bellowed chest pockets while wearing a pack, and the sleeve stash pocket lets you hide an 20 for the first pitcher after a hard day on the hill. Underarm vents let you blow off steam as you scrape an inch of ice off your windshield or hump up 3,000 vertical feet in less than a mile.