Breathable, waterproof, rugged. The Koldo has a breathable membrane and pit zips to release heat during high activity to keep you dry from internal and external moisture. A three layer waterproof laminate, Bemis seam taped water proof zippers, and a durable DWR treatment will protect you from the heaviest deluges. 6 pockets easily store at-hand essentials. Combine the jacket with the Koldo pant to ensure comfort in the backcountry.