Arc'teryx Beta AR Jacket Waterproof jacket (M, blue) - The Beta AR Jacket from Arc'teryx features the durable Most Rugged 3L GORE-TEX Pro 2.0. The three-layer construction with 80d and 40d nylon is not only waterproof, windproof and breathable, but also extremely abrasion resistant and durable. The hardshell jacket can therefore come into direct contact with crags and ice.The rain jacket has a high collar and a weatherproof hood that’s compatible with climbing helmets. The high front pockets are also easy to reach when you’re wearing a harness. Underarm zips and the inner pocket complete the functional Arc'teryx jacket.