Crux AK37 3G (RT)

37 liters | roll-top | 1040g | 40% Kevlar 60 % Cordura PU-coated

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CRUX AK37 3G (RT) - is a compact climbing sac for mountaineering and alpine rock routes.

The new third generation of this pack brings waterproof PU coated Kevlar/Cordura fabric with welded seams, as well as indestructible metal snap buckles. Uniquely for a sac this size is removable and moldable titanium frame-stays making it comfortable to carry heavy loads in comfort even when laden with 10 kg of ropes and hardware.

This is a true climbers pack and is built to withstand the worst mountain use and abuse. Simple, functional and built for the harsh mountain environment.


VOLUME: 37 liters

WEIGHT: 1040 g

MATERIAL: 40% Kevlar, 60% Cordura, PU-coated

MATERIAL FRAME: 2 x 7,50 mm | titanium braces (removable)

SIZES: One size (up to about 50 cm back length)



  • Welded seams

  • Metal buckles clasps

  • Hydration system compatible

  • Removable side compression straps

  • 40mm curved anatomical waistbelt with metal Duraflex buckle

  • Waist belt has threading points for gear racking if required

  • Large red haul loop / Belay clipping point

  • Reinforced base

  • Double ice axe attachments

  • Ski attachments

  • Wand Pockets


Technical details

Crux rucksack feautures

Notice: Crux gives a Lifetime Guarantee to the original owner, against defects in materials and craftmanship. Should any flaw appear due to defective materials or craftmanship, crux will repair or replace the product at no cost to the owner. 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 does not affect your statutory consumer rights.

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Warranty10 years

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