£199 / €235 / $249
Currently out of stock

The RK30 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. The RK30 is an exceptionally tough pack, ideal for technical routes that involve hauling and necessary physical abuse.

It is equally at home in very wet activities, with the roll-top closure and fully welded construction fully adept at keeping out water. Compact and robust, the RK30 has become a greatly sought-after pack.


A updated version of the RK30 will be available again around May 2019.




Accessory pocket at rear
Dyneema® cord compression system
Oversized back haul loop – easy to grab and clip
Top compression strap
Two ice-axe holders
Welded construction throughout - completely waterproof

Technical Specifications

Capacity 1830 cu. in. / 30 litres
Weight 2 lb / 895 g
Fabric 40% Kevlar / 60 % Cordura, 7 oz/yd² / 240 g/m²
Frame none

one size only

Spares & Repairs

We have replacement parts for nearly everything. Please go to the Rucksack Spares area 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 agents.


The RK30 will be available from May 2019.

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