Hyperlite Mountain Gear Unbound 40

The Unbound 40 is easy to access and completely seam taped backpack for thru hiking.

There is simply no better way to measure the effectiveness of a pack design than to send it out on thru hikes. Over the course of 2,000+ miles and an average of five to six months, day in, day out, loaded and unloaded, jostled and dragged, and exposed to the elements, one of these long walks is going to tell you the truth. So, that’s what we went after, and the Unbound 40 is the honest to goodness result. Every carefully considered feature fought for its right to remain, leaving only the essentials required for an efficient, comfortable, adaptable, and dependable travel companion. Thru hiking is hard enough. Let the Unbound 40 carry some of the weight.

Features:

• Roll-top closure system with removable side compression straps for customizable compression
• Integrated plastic sheet with high-density foam back panel pad
• Removable vertical compression straps
• Hardline with Dyneema® shoulder straps with 3/8” closed cell foam and spacer mesh
• Seam tape on all vertical side seams and behind all sewn-on pack features
• 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
• 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
• Oversized Side Pockets for streamlined access to water bottles and other gear on the go
• Bottom pocket features durable Dyneema Stretch Mesh, ideal for easy access to snacks or a quick place to store your rain jacket
• Updated removable hipbelt featuring zippered pockets, more cushion, and additional daisy chains for modularity. Built using Hardline with Dyneema, dual-density 1/8" closed cell rigid foam, 1/4" closed cell foam, and spacer mesh
• Grab Loop
• Top Y-strap compression -- Designed to secure gear
• Updated sternum strap allows for easy adjustments along shoulder strap daisy chains
• One removable, contoured aluminum stay

You can combine your backpack with Hyperlight accessories.

Why choose the Unbound 40?

ACCESSIBILITY ON THE MOVE: Large dual-entry front external pocket for quick grabs without needing to dig through everything inside. Generously sized side pockets and a stretch bottom pocket add even more storage options

MAKE IT YOUR OWN: Low-profile daisy chains allow countless ways to carry external items for different kinds of trips. Remove or add top-side compression straps depending on needs, or shock cord for oddly shaped gear

COMPLETE SEAM TAPING: With the exterior binding, seam bulking is eliminated within the pack, allowing for more efficient taping and improved water resistance

How to measure backpack size:

Start out by tilting your head forward and finding the bony bulge at the base of your neck. That's your C7 vertebra and the top of your torso length.

Next, find the tops of your hipbones and place your hands on your hips with your thumbs pointing towards your spine. Where your thumbs would meet in the middle of your back is the bottom of your torso length.

• 38 - 43 cm = size S
• 43 - 48 cm = size M
• 48 - 53 cm = size L
• 53+ = size Tall