Outdoor Research Helium Bivy The Helium Bivy is an award-winning, ultralight, durable, minimalist shelter built with premium materials to move fast and light in all conditions. The Helium Bivy is our lightest, best-selling, and most awarded bivy sack. Thru-hikers and bike-packers love the Helium for its refined footprint and reduced weight and trust it for its durable, lightweight, waterproof Pertex® Diamond Fuse technology. Incredibly quick to set up and break down, the ultralight Helium Bivy is 14% lighter than its last generation and has everything the outdoor minimalist needs to be comfortable. A clamshell opening makes it easy to get in and out and resists wear and tear for future seasons of adventuring. The ideal shelter for minimalists looking to trade weight for speed, agility, and performance, the Helium Bivy is a fast-and-light essential. Specs: Fabric : bluesign® approved Pertex® Shield Diamond Fuse 2.5L 100% Nylon, 30D Ripstop Upper. 100% Nylon, 40D with TPU lamination floor, bluesign® approved 100% Polyester Mesh Weight :15.8 oz with pole, 14.5 oz without pole/448 g with pole, 400 g without pole Features: Fabric Performance Waterproof Breathable Ultralight Fully Seam-Taped Durable No-See-Um Mesh Design Features Single-Pole System Reflective Logo and Trims Two Stake Loops One Guy Line Loop High Volume Toe End Clamshell Opening Two Internal Fly Fasteners Dimensions Top of Bivy (width): 26"/ 66cm,Foot of Bivy (width): 19"/ 48cm,Length: 82" / 208cm Top of Bivy Height: 19 3/4 Packed in Stuff Sack: 12.25" x 3.5" (31cm x 9cm) Please Note: Never completely enclose yourself in any Bivy or tent. Always leave about 6 inches opening to avoid suffocation. Outdoor Research Helium Bivy