The Hyperlite Unbound is designed for the on-trail backpacker and all-day thru hiker, prioritizing mobile storage and easy accessibility while covering big miles. Built to enhance efficiency, this pack features the latest on-trail innovations to keep your gear within reach while you stay focused on the trail, maximizing your time on the move. DESIGNED FOR: Backpacking KEY FEATURES: Dual-entry stretch mesh front pockets ensure organized storage and quick access to gear. Large, easy-to-reach side pockets keep water bottles or gear accessible on the go. Exterior bottom pocket with dual entry provides quick access to snacks or trash storage. Features Top Closure: Roll-top closure system with removable side compression straps for customizable compression Hip Belt: Updated removable hip belt provides more cushion and the ability to customize your pack fit. Built using Hardline with Dyneema, dual-density 1/8" closed cell rigid foam, 1/4" closed cell foam, and spacer mesh Back: Integrated plastic sheet with 1/4" high-density foam back panel pad Loops: Grab Loop Side Straps: Removable vertical compression straps Top Compression Straps: Top Y-strap compression -- Designed to secure gear Shoulder Straps: Hardline with Dyneema® shoulder straps with 3/8” closed cell foam and spacer mesh Sternum Straps: Updated sternum strap allows for easy adjustments along shoulder strap daisy chains Buckles/Bungees: New 5/8" hardware minimizes weight without sacrificing durability Stays: One removable, contoured aluminum stay Sealing: Seam tape on all vertical side seams and behind all sewn-on pack features Pack Accessory Options: Shoulder Pocket, Versa, Stuff Sacks, and Pods Daisy Chains: Four 1/4" vertical daisy chains for attaching extra gear for trip-specific customization, in addition to a horizontal daisy chain below dual-entry front pocket Compatible With: All Hyperlite Stuff Sacks and Hyperlite Mountain Gear Removable Hip Belts Front External Pockets: Large dual-entry front pocket provides significant storage as well as streamlined access to smaller items (i.e. tent stakes). Made from durable Dyneema® Stretch Mesh Side External Pockets: Oversized Side Pockets for streamlined access to water bottles and other gear on the go Bottom External Pocket: Bottom pocket features durable Dyneema Stretch Mesh, ideal for easy access to snacks or a quick place to store your rain jacket Specifications Materials White: Dyneema® Composite Hybrid 3.8 Main BodyBlack: Dyneema® Composite Hybrid Main BodyBlack and White: Dyneema® Composite Hybrid Lumbar & Bottom Panel, Dyneema Stretch Mesh Front and Bottom Pockets, Hardline with Dyneema Side Pockets Internal Volume 40L External Volume 9L Weight White: 1.9 lbs | 30.1 oz | 853 g Black: 2.0 lbs | 32.2 oz | 914 g *Average weight based on size medium Load Capacity Up to 40 lbs/18.14kg Back Width 10.0" | 25.4cm Height 32.5" | 82.6cm Top Circumference 35.0" | 88.9cm Bottom Circumference 35.0" | 88.9cm