Crux AK 37 Backpack

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Crux AK 37 Backpack

Availability: Out of stock

Stock #: D28Q- Closeout

Crux rucksacks are simple and minimalist with a spartan carrying system and a general disdain for cosmetic detail.  Closer scrutiny, however, will reveal a subtlety of design driven by function.

The AK 37 is a compact climbing sac for mountaineering and alpine rock routes. A traditional top-loader, it has quickly gained recognition as an excellent all-round sac, particularly on big one-day technical routes. Uniquely for a sac this size, it has (removable) frame-stays making it comfortable to carry even when laden with 10 kg of ropes and hardware. The new 3rd generation model features a fully welded construction and a new lighter, stronger Kevlar fabric. 


  • Side compression straps that are quick and easy to fit or remove
  • Oversize back haul loop for easy grabbing and clipping
  • External lid pocket with taped seams for water resistance
  • 40 mm webbing waistbelt with low-profile hip-fins
  • 4 mm Rivory-Joanny drawcords, handy for emergency rap anchors
  • Ultralight frame
  • Internal sleeve for hydration bladder
  • Two ice-axe holders
  • Stretch wand pockets


  • Capacity: 37 liters
  • Weight: 1020 g
  • Fabric: 40% Kevlar / 60% Cordura
  • Frame: 2 x 7.00 mm Titanium alloy stays (removable)
  • One size

Additional Information

Additional Information

Intended Use Alpine & Ice Climbing, Rock Climbing