Integral Designs Salathe Tegraltex Bivy, Dual Zip, Blue/Yellow Technical, versatile bivy ideal for both summer and winter use Trilaminate Tegraltex fabric is fully waterproof and wind-resistant Top fabric rolls down for added ventilation on warm evenings Flexible design keeps you cocooned while you sit up or lie down Measures 92 inches long; fits campers up to 6 feet 6 inches tall; weighs 2.1 pounds