The Helium Adrenaline Day Pack 20L is the perfect size pack for adventure seekers who want to go light and fast. Built with Pertex Shield, this pack is durable, waterproof, and breathable, making it perfect for carrying all your essentials on a long day hike or ultralight overnight trip. The main compartment is critically seam-taped to keep your gear dry. It features a zippered internal pocket for storing small items. Compression straps with integrated ice axe loops keep your equipment secure, while a detachable waist strap provides extra support when you need it.. . . . This product will be shipped directly from Outdoor Research and will leave their warehouse in 2-3 business days. Eligible for UPS ground shipping only.. . . . . Highly Water Resistant. Abrasion Resistant. Drawcord Cinch Closure. Zippered Shoulder Strap Pocket. Critically Seam-taped Main Compartment. Compression Straps with Integrated Ice Axe Loops. Detachable Waist Strap. Zippered Internal Pocket. Adjustable Sternum Strap. Ergonomically Shaped Shoulder Strap. FABRIC: Shell: 210D Mini Diamond Ripstop, 100% Nylon, PU Coating & 30D Ripstop bluesign approved Pertex Shield Diamond Fuse 2L, 100% Nylon. WEIGHT: 478 g/16.1 oz. VOLUME: 20L / 1220 cu.in.. Imported. | Outdoor Research Helium Adrenaline 20L Day Pack