Crux AK47 3G (RT) - is the new 3rd generation version of the AK47 and is identical to its predecessor in features and function. The two major differences are a new fabric – 40% Kevlar instead of 28% previously – and an all-welded welded construction, making it fully water-resistant. 
There are two feature alterations. The ice-axe carrying system which has been updated to stay abreast of modern tool development and the top access to the main compartment now has a roll-top closure instead of a draw-cord.
The AK47 is the icon of the crux range. Launched in 2002, it has remained virtually unchanged for over a decade – a testimony to its enduring appeal of ruthless functionality and aesthetic simplicity
Designed for classic alpine mountaineering, it is small enough for shorter climbs yet big enough for multi-day routes. The AK47 will hump a heavy load of hardware to the bottom of a route with sufficient comfort, but when empty is so light that you hardly notice it on steep ground.
What really sets the AK47 apart, though, is its stark, minimalist design. Features have been pared to the brink of absolute necessity with enough detail retained to allow each climber to tailor the pack to his/her unique style. The AK47 is available in three back-lengths. 
To understand just how versatile this seemingly simple rucksack is, look here.

CAPACITY: 47 litres / 2850 cu. in.
WEIGHT: 1195 g / 2 lb 9 oz
FABRIC: 40% Kevlar, 60 % Cordura, 7 oz/yd² / 240 g/m²
FRAME: 7.00 mm / 0.275 in  Ø tubular titanium full frame (removable)
SIZES: 1 (short), 2 (medium), 3 (long)

CHARACTERISTIC

Technical details 

Crux rucksack features

Notice
“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.”