CRUX RK40 backpack

CRUX RK40 backpack

CRUX RK40 backpack - is a roll-top design. Other than its different compression system, however, it is made from the same fabrics and features as the crux AK range.


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179,28 €tax incl.

249,00 €tax incl.


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CRUX RK40 backpack - is simply a bigger version of the RK30. The only other difference aside from the volume of the sack itself is that the RK40 has sleeves on the inside that allow frame-stays to be inserted. This makes the pack more comfortable if one is lugging heavy loads around (and a big rack with a couple of ropes would qualify as such).


Capacity: 40 litres, 2440 cu. in.

Weight: 995 g, 2 lb 10 oz

Fabric: 40% Kevlar / 60 % Cordura, 7 oz/yd² / 240 g/m²

Frame Option: for two 0.275in / 7.00 mm Ø tubular titanium frame-stays (not supplied with product)

Sizes: R (regular), L (Long)



  • Accessory pocket at rear
  • Dyneema® cord compression system
  • Oversized back haul loop – easy to grab and clip
  • Top compression strap
  • Two ice-axe holders
  • Option to fit two stays to stiffen back carrying system
  • Welded construction throughout - fully waterproof

“Crux guarantees all products for ten years from the date of purchase to the original customer. This guarantee is against defects in materials and craftsmanship. Should any flaw appear due to defective materials or craftsmanship, crux will repair or replace the product. If damage is determined to be the result of normal wear and tear, abuse or accident, repairs will be made at a reasonable cost. This guarantee does not affect your statutory rights.”