Turn your 3-season sleeping bag into a 4-season bag by layering it with the Helium Emergency Bivy. Just like how you'd put a hard shell over your puffy jacket, this bivy was designed to protect your sleeping bag from the elements while trapping in warmth. Built with the best-selling, award-winning Helium fabric, this ultralight shelter system uses a simple tube-like construction and cinch closure to seal out wetness and save on bulk. Weighing in at an undetectable 9.6 ounces and packing down to the size of a beer can, the Helium Emergency Bivy is perfect for adding warmth and peace of mind to your backcountry sleep setup.

OUTDOOR RESEARCH: We built a company from a feeling: the urge to get out. It's what drives us. Our tribe is devoted to exploring our outdoor passions and challenging ourselves in the mountains, water, and deserts of the planet we love so much. ADDITIONAL FEATURES: This backpacking gear has 36 inches top width, 36 inches foot width, 84 inches length and measures 5.5 inches by 2.75 inches when packed into a stuff sack. It adds no extra bulk to your backpack and features a reflective logo. ULTRA-LIGHT & COMPRESSIBLE: Outdoor Research’s bivy is known for its compressible design which can be packed down to a size of a beer can. It is water-resistant to seal out the wetness; breathable so you can sleep peacefully; and ultra-lightweight to experience ease while carrying. SLEEPING BAG PROTECTION: Designed to protect your sleeping bag from outdoor elements, the helium emergency bivy comes with a cinch closure to seal everything. Its tube-like structure helps you use your 3-season sleeping bag in all 4-seasons without adding any bulk. EMERGENCY BIVY: Keep yourself protected from the outdoor elements with the Outdoor Research Emergency Bivy. A must-add for every outdoor adventure, this emergency bivy is usable in many ways and offers many years of dependable service.

Closure Type: Drawstring. Product Dimensions: 84"L x 36"W. Fill Material: Down. Material: Pertex Shield 2.5L 100% nylon 30D ripstop. Sport Type: Camping and Hiking. Age Range (Description): Adult. Seasons: Spring/Summer. Shape: Square. Color: Paprika. Brand: Outdoor Research. Date First Available: June 1, 2018. Best Sellers Rank: #824,455 in Sports & Outdoors. Customer Reviews: 5.0 out of 5 stars 4 ratings 5.0 out of 5 stars. : B07D5W98S6. Fill Material Type: ?Down. Style: ?Helium Emergency Bivy. Part Number: ?269454-0864-1Size. Manufacturer: ?Outdoor Research. Suggested Users: ?Unisex. Model Name: ?Helium Emergency Bivy. Brand Name: ?Outdoor Research. Item Dimensions LxWxH: ?7.87 x 4.33 x 3.15 inches. Package Weight: ?0.3 Kilograms. Item Package Dimensions L x W x H: ?7.32 x 4.25 x 2.64 inches. Size: ?One Size. Item Weight: ?270 Grams. Closure Type: ?Drawstring. Product Dimensions: ?84"L x 36"W. Fill Material: ?Down. Material: ?Pertex Shield 2.5L 100% nylon 30D ripstop. Sport Type: ?Camping and Hiking. Age Range (Description): ?Adult. Seasons: ?Spring/Summer. Shape: ?Square. Color: ?Paprika. Brand: ?Outdoor Research.