70% Heat Reflective - Escape Lite Bivvy reflects 70% of body heat to prevent heat loss and provide life-saving warmth; Water-Resistant - Durable, water-resistant fabric and with hood keep out the elements and keep you dry; Breathable - Bivvy design prevents condensation inside by allowing moisture out while keeping the rain out too; Multiple Uses - Bivvy bag can be used as a sleeping bag liner, emergency blanket or as an ultralight summer bag; Lightweight at 5.5 oz - Lightweight bivvy bag is compact and fits in a hiking bag or survival kit; 2 Year Warranty