For the ultimate minimalist, the Rab Trailhead Bivi is lightweight, packable, and breathable, made with hardwearing ripstop waterproof fabric. It can be used as a standalone sleeping bag cover for lightweight mountain days or as extra protection under a tarp on backpacking or bikepacking trips. The lightweight waterproof construction keeps the worst of the elements off a sleeping bag, while an open face style with snap fasteners offers great ventilation to reduce condensation. Ideal for fast and light adventurers who find a zipped face bivi constricting, the Trailhead Bivi weighs just 406g and packs down to just 18cm x 12cm. Stashable, simple and protective, it's built for the hardy outdoor adventurer. Features Lightweight and breathable waterproof ripstop nylon fabric Taped waterproof seams Simple snap opening entry with a stiffened peak and integrated rain gutter Specifications Product code MR-69 Weight 406 g Length 250 cm Shoulder width 85 cm Packed size 18 cm x 12 cm Hydrostatic head 10,000 mm Breathability (MVTR) 10,000 g/m² / 24 hrs Top Fabric 40D ripstop nylon with PU coating (108 gsm) and fluorocarbon-free DWR Base Fabric 40D ripstop nylon with PU coating (108 gsm) and fluorocarbon-free DWR Colours Chlorite Green, Ascent Red Material Facts Recycled PFAS Total content 1% No Fabric 0% No Main 0% No Second outer 0% No Trims 7% No Renewable energy (product manufacturing) 4% Country of origin China Sustainability Features Fluorocarbon (PFAS) free fabric Fluorocarbon (PFAS) free product Made with renewable energy