Features Enter your model number to make sure this fits. Reflective thermo-light Coating on inside to retain body heat Robust, lightweight rip-stop fabric for durability in harsh conditions Waterproof and windproof Alpine emergency signals printed on the bag 8 reinforced loops on sides for provisional evacuation Description Product Description As essential as your Beacon, shovel, or probe, the pieps bivy bag mfl double is windproof and waterproof, has a reflective lining for maximum heat retention in emergency situations, and features extra wide Dimensions for added comfort, yet still packs down small to save space in your pack. More than just an effective emergency bivouac, the pieps bivy bag mfl double can also be used as a rescue sled, poncho, seat-pad, sun sail, rain collector, and a host of other backcountry uses. Double-wide for extra comfort, the pieps bivy bag mfl double still packs down small for easy storage.