Mountain Hardwear Hueco 35L Backpack
Mountain HardwearHueco 35L Backpack

Built for the vertical world.

The Mountain Hardwear Hueco 35 Backpack is up for any climbing adventure, whether you're heading up a big wall or to the gym. With a stowable rope strap and a zippered helmet pocket, the Hueco leaves plenty of room in the main compartment for gear, food, and clothes. There's also an internal hydration sleeve that doubles as a sleeve for electronic tablets and guide books. The reinforced grab handle makes it easy to get gear out of the large zippered top opening when you're hanging thousands of feet in the air.

Mountain Hardwear built the Hueco 35 around the HardWave suspension system, which conforms to your back in order to distribute weight as evenly as possible. HardWear tarp, Ballistic nylon, and HD nylon fabrics make this pack surprisingly strong for how little it weighs. The Hueco also features carry loops for trekking poles and ice axes, two deep side pockets for big water bottles, and a zippered security pocket for your phone, wallet, and keys.

  • HardWave suspension system
  • Stowable webbing belt
  • Large zippered top opening
  • Stowable rope strap
  • Internal hydration sleeve
  • Zippered top helmet pocket
  • Zippered security pockets
  • Two deep side pockets
  • Reinforced grab handle
  • Carry loops
  • Reviews
  • Q & A

Ripped within 6 months

  • Familiarity: I've used it several times

Just used it for travel mostly, and it started to bust at the seams. Disappointed in the quality

Mountain Hardwear Hueco 35

  • Familiarity: I've used it once or twice and have initial impressions

Very comfortable, and I can fit all my gear for a day trip to the crag or the gym.


  • Familiarity: I've used it several times

Used this for a couple 14ers in CO

Comfortable and held up to the occasional shower.


I just got mine and I'm not crazy about the strap that goes over the main zipper opening of the bag. I'm using it for an everyday bag as well as a climbing pack, and I'd rather just unzip the main pocket for access rather than unclip the strap and open the zipper.

It looks like you figured out a way to stow the strap. Did you sneak it through the hydration hose opening? The little velcro pouch that the strap originates from is way to small to be able to tuck away the strap in it.

Unanswered Question

Does this come with the same rope tarp as the Splitter 40?

Can this one fit for carryon luggage?

It has diff size from Amazon (Product Dimensions: 22 x 14 x 6 inches) and MH website (Pack Dim Regular: 24 in x 13 in x 10 in).

Yes, this will work as a carry-on-- the bag being soft rather than a rigid case helps you squeak an inch or two with carry-ons for airlines, generally. (I regularly use a 50L pack as my carry-on without so much a peep from the flight attendants.)

Go to pack for almost everything.

  • Familiarity: I've put it through the wringer

I use this pack for everything except long backpacking trips where I need a larger pack. The equipment loops and straps work well. I have attached my trekking poles when not in use and they hold in secure and they are easy to use. My hydration bladder (platypus 3 liter) fits in the pocket. The hose routes through the pack easily and is located in a convenient spot. The side pockets and straps holds gear securely. Often I will put a Nalgene bottle or a water filter in the pocket and I've never had problems with losing gear. The main pocket is easy yo access and fits gear appropriately for most trips. The top pocket is great for smaller gear or stuff that would like for quick and easy access. The number one thing that impresses me is its durability. I have taken it to England and used it as a day pack, climbed Mount Whitney and got caught in a thunderstorm and everything inside stayed dry, and I take it with me on most camping trips and hikes so it gets a lot of use and everything still works great. Zippers work with ease, clasps are easy to use and don't come loose, there are no holes or seams coming undone. This pack is a work horse. Love it. Can't say enough about how much I like this pack and how reliable it has been.