A lightweight, packable and breathabl bivi made with Ripstop waterproof fabric. It can be used as a standalone sleeping bag cover for light and fast mountaineering or for extra protection under a tent or tarp on bike and backpacking trips. Top: 40D ripstop nylon with PU coating (108gsm) with fluorocarbon-free DWR \ HH: 10000mm \ MVTR: 10000g/m2/24 hrs Base: 40D ripstop nylon with PU coating (108gsm) with fluorocarbon-free DWR \ HH: 10000mm Lightweight and breathable waterproof ripstop nylon fabric 10,000mm Hydrostatic Head MVTR 10,000 g/m2/24h Taped waterproof seams Simple snap opening entry with stiffened peak and integrated rain gutter Length: 250cm; Shoulder Width: 85cm Weight: 406 g / 14.3 oz