The ultralight Navassa Bivy with Drizone™ makes a great bivy because it’s lightweight, waterproof, and breathes exceptionally well. With taped seams for durability, a large mesh window for added ventilation, and a heavy 70D nylon floor, the Navassa Bivy will be your go-to bivy for many years to come.
Sierra Designs’ 100% nylon Drizone™ waterproof/breathable fabric does a suburb job of sealing out wind, rain, and snow while venting internal moisture, helping you stay dry, comfortable and protected in any type of weather. Sierra Designs selects 2-layer, 2.5-layer, and 3-layer Drizone™ fabrics for different equipment pieces to provide the best blend of weather protection and moisture management for any activity.