The Rab Men's Downpour Mountain Trousers provide reliable weather protection when you're hiking in often rainy conditions in the mountains. Its Pertex Shield 2.5L fabric offers high waterproof, breathable ratings bonded to a thin, light, 100% recycled material for compact packability as well as dependable weather protection. A regular fit enables quick-and-easy layering in the middle of the trail, and articulated knees work with the gusset to give full freedom of movement. Full-length side zippers let you layer up at a moment's notice, and they double as ventilators in humid conditions.