Unbound 40


The Hyperlite Mountain Gear Unbound 40 is built to go above and beyond, sturdy backpack made for those longer bikepacking and thru hiking adventures.


Prepare for the trip of a lifetime by taking everything you need with you in your Hyperlite Mountain Gear Unbound 40 backpack. The newest release from the beloved mountain gear brand, the Unbound 40 is an updated and newly optimised product that takes the popular Hyperlite backpacks and upgrades them with a number of amazing new features.

First of all, the basics. The Hyperlite Mountain Gear Unbound 40 is a waterproof, lightweight and comfortable backpack with a 40L capacity, making it perfect for those longer trips where you need more food, water and clothing with you. There is so much space in this backpack for all of your gear, and weighing under a kilo, this pack won’t drag you down.

The lightweight nature of the backpack is thanks to its construction from Hyperlite’s own Dyneema® Composite Fabrics, which are waterproof, incredibly durable, and lightweight- according to Hyperlite, the fabric has a “strength-to-weight ratio that makes it the strongest fibre in the world”. That’ll do!

One of the highlights of the Hyperlite Unbound 40 is the new pocket setup. Large, dual-entry front external pocked and huge side pockets, and a stretch bottom pocket give you loads of options for storage, and ensure everything you need is easily accessible. The side pockets are perfect for slipping in your Sustain water bottle to keep hydration on hand.

The newly-added shock cord binding and daisy chain connections also provide countless customisation options for securely strapping on oddly-shaped gear, or to secure the roll-top and compress the pack when the full capacity isn’t used.

Not only is the Hyperlite Unbound 40 light and spacious, it’s also designed for comfort. You won’t experience any rubbing, or chafing here – Hyperlite has always been well known for having incredibly comfortable shoulder straps on their backpacks and this is no different, while the padded hip belt has had a little more cushioning added.

DCH50 Main Body, DCH150 Lumbar & Bottom Panel, Dyneema Stretch Mesh Front and Bottom Pockets, Hardline with Dyneema Side Pockets

The Hyperlite Unbound backpack offers an internal volume of 55L. For a more compact option, consider the Hyperlite Southwest 40. Choose the correct Hyperlite backpack size to fit your body type by measuring down the curve of your spine to find your torso length, and compare that to our size guide.

Small (15.0” – 17.0” torso)
Medium (17.0” – 19.0” torso)
Large (19.0” – 21.0” torso)
Tall (21.0 – torso plus)


  • Roll-top closure system
  • Removable side compression straps with integrated daisy chains
    Hardline hip belt with foam and spacer mesh
  • Grab Loop
  • Top Y-Strap compression straps
  • Hardline with Dyneema shoulder straps
  • Sternum Straps
  • 5/8″ bungee hardware
  • Single lightweight aluminum stay
  • Seam tape on all vertical side seams and behind all sewn-on pack features.
    Front External Pockets made from Dyneema Stretch Mesh
  • Oversized Side Pockets
  • Bottom External Pocket

Thru Hiking

Additional information


Black, White


Small, Medium, Large, Tall

You may also like…