Unbound 55
SKU: 3-10855-1
55L PACK, IDEAL FOR
- Long Distance Backpacking & Thru Hiking
- Any Environment
Become UNBOUND to go bigger for longer! The UNBOUND 55 expands your capacity for more adventurous trips by adding extra volume to accommodate seasonal clothing and gear changes, or more food and water when resupply points are fewer or farther in-between. 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 55 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 55 carry some of the weight.

WHY CHOOSE THE UNBOUND 55?
WHY CHOOSE THE UNBOUND 55?
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.
BUILT TO GO THE DISTANCE
With a strength-to-weight ratio that makes it the strongest fiber in the world, we choose made in the USA, bio-based Dyneema Composite Fabrics to create a pack that will get you to your trail's terminus and beyond.
FEATURES
SPECS & DIMENSIONS
- MaterialsWhite: DCH50 Main Body, DCH150 Lumbar & Bottom Panel, Dyneema Stretch Mesh Front and Bottom Pockets, Hardline with Dyneema Side Pockets | Black: DCH150 Main Body, Lumbar & Bottom Panel, Dyneema Stretch Mesh Front and Bottom Pockets, Hardline with Dyneema Side Pockets
- Internal Volume55L | 3400 cu in
- External Volume9L | 549 cu in.
- WeightWhite: 1.9 lbs | 31 oz | 879 g | Black: 2.15 lbs | 34.4 oz | 975 g *Average weight based on size medium
- Load CapacityUp to 40 lbs
- Back Width10" | 25.4cm
- Height38" | 96.52cm
- Top Circumference40" | 101.6cm
- Bottom Circumference35" | 88.9cm
- Made InMexico
WHY CHOOSE THE UNBOUND 55?
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.
BUILT TO GO THE DISTANCE
With a strength-to-weight ratio that makes it the strongest fiber in the world, we choose made in the USA, bio-based Dyneema Composite Fabrics to create a pack that will get you to your trail's terminus and beyond.
Product Reviews and Questions
Great updates in comparison to the SW 3400
I took the SW 3400 on the PCT and CDT and absolutely loved that pack but needed a new one. From what I can tell in the early use of the Unbound 55, all the differences in design are nothing but positives and it carries as comfortably as my SW did. Smart changes HMG!
Awesome redesign
This pack has everything I have always wanted without going to competitors for extra features. Now a solo hiker my partner of 55 yrs has died. We always split the weight but now it’s up to me. Me and my dog, Alice will continue on in John’s memory