Product Code: CX-AX-35



The AX35 is a lightweight version of the AK37. It has the same feature set, but is made from our exclusive Cordura fabric with a 3 mm Dyneema ripstop, and is stitched rather than welded. It also features our new lightweight 9mm flat titanium stays. Although not as stiff as the tubular ones found on the AK37, these provide adequate support to carry a big rack and a couple of ropes. The carrying harness has the identical specification to our AK range, and in particular maintain the same hip-belt design that has been much acclaimed.

The AX35 comes in a single, unisex, back length.




External lid pocket
Side compression straps – quick and easy to fit or remove
Oversized back haul loop – easy to grab and clip
Top compression strap
40 mm webbing waistbelt with low-profile full-sized hip-fins
3 mm Tendon drawcord – can be used as emergency rap anchors
Internal sleeve for hydration bladder
Two ice-axe holders
Wand pockets
Reinforced, double-layer base panel

Technical Specifications

Capacity 35 litres
Weight 990 g
Fabric 15% Dyneema / 85 % Cordura, 150 g/m², ripstop
Frame 9.00 mm x 1.5 mm flat titanium frame-stays (removable)

One size only

Spares & Repairs

If you break any buckles or your frame (it does happen), then don't panic. We have replacement parts for nearly everything. Please go to the spare parts section of our online shop.

Crux rucksacks don't often need mending, but they are not completely immune to abuse. Should your sack ever need repair, then please click here for details of our recommended repair companies.

Delivery & Returns

All our products are shipped with UPS for quick, reliable and secure delivery. As most of our products are quite large and/or of high value, they will require a signature. We cannot deliver to P.O. boxes. All orders are dispatched the next working day after receipt (Monday to Friday). Typical delivery time is 1-2 days.

If you change your mind your purchase, you can return it unused for an exchange or refund, provided it is within 90 days of receipt of your order and the item is still in its original packaging.

Knowledge Base

For more information about our backpacks, please click on the following links below.
Sizing and fitting of crux backpacks
The physics of backpack design
Using the features of an AX pack