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Versatile, mid-size hauler from the experts at Black Diamond.

Whether you're heading out on an overnight adventure or you simply like to be well-prepared for a day of climbing, the cavernous Black Diamond 50 Caliber Backpack holds everything you'll need and then some. This functional pack features a flexible, V-shaped aluminum-stay frame and a haul-bag-style bottom that helps it stand upright for easy loading and unloading through the top access.

  • V-Flex suspension employs two aluminum stays arranged in a V-shape for proper load transfer to your hips
  • Padded shoulder straps and hip-belt take the edge off especially heavy loads
  • Hip-belt is removable for days when you're carrying a light load
  • Haul-bag-style bottom keeps bag standing upright for easy access to your gear during breaks on trail or at the crag
  • Slip your water reservoir into the inner sleeve for hands-free, on-the-go beverage-ing (reservoir not included)
  • Tuck-away helmet holder and rope strap allow you to attach extra gear

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Black Diamond 50 Caliber Backpack - 3051-3295cu in

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Here's what others have to say...

Was wondering how this would work as a...

Was wondering how this would work as a backpacking pack? I tend to do 1-3 nights and would need room for tent, bag, inflatable sleeping pad, clothes, food, and cooking gear.

Responded on

This is 50 liters, which is a pretty good size for the length of trip you're talking about. It would be a little small if you were in cold weather or if you were a packrat.

5 5

Perfect for a day of climbing

This is perfect for getting all your essential gear to the base of the climb. Packs a rope, harnesses, draws, some extra layers and leaves plenty of room for some extra gear if you need it. Couldn't be happier with the pack. The "haul bag style" bottom is an awesome perk as well. Adds the easy accessibility as well as some extra protection to the bottom of the pack.

4 5

Hold-all haul-all

  • Gender: Male
  • Familiarity: I've used it several times

I can stuff a climbing rope, static rope, slings, biners, harness, and crampons in this pack and still have room for extra layers, my hydration pouch, lunch and snacks. The pack sets the weight on my waist comfortably, even if the shoulder straps are a bit narrow for my frame.

The construction is SOLID, more so than any other pack I own. It's a great pack for a day of climbing, but lacks the compartments to make it a well organized weekend pack. I do use it for overnights, but I travel light and sleep in a hammock.

Responded on

Did it fit your climbing gear and all you hammock/overnight gear at the same time?

Responded on

Sorry for the late response. I can pack a top-rope setup with my overnight gear, but not a full trad rack.

Write your question here...
My 20 year old...

Write your question here...
My 20 year old son and I are going to run/hike about 400 miles of the AT in April. I would like suggestions on equipment: tent, shoes, clothing, cooking supplies, etc to make are adventure do-able. Any advice would be appreciated. Thanks!

Responded on

HAHA! I'm going backpacking and I have no idea what I'm doing so I just need some advice on EVERYTHING I should bring to make sure the trip succeeds without a hitch. This looks like a cool backpack so I thought I would post my question here. LOL!

Responded on

Hey Steve,
Read "Freedom of the Hills" It is often referred to as 'The Bible' for the outdoors. That will answer all your questions and more. Also, maybe making sure you are familiar with your equipment and yourselves before you go out for such a long trip might be worth considering.