The Summit Bivy is an advanced bivy sack system that uses DAC Featherlite aluminum poles to create a self-supporting canopy around the facial area. This allows better breathability and movement without added exposure to the elements. A great choice for multi-day wilderness trips, snow-camping and emergency situations. Specifications: - Waterproof/breathable fabric top and waterproof ripstop nylon bottom fabric (5000mm) - Factory-taped seams are completely waterproof - Facial ventilation system for better breathability - Contured hood and comfortable roomy footbox - Includes a stuff sack - Summit Bivy - Waterproof/Breathable - Size: 91" x 32" x 22"/H 17" (230 x 80 x 55 cm/H 42 cm) - Total Weight: 2 lbs (0.92 kg)