This mountaineering backpack SPEED 40 BACKPACK fromBLACK DIAMOND is designed for 4-season use, and features a host of qualities to meet the needs of demanding climbers.

The design is simple, compact and free of superfluous elements. It's cleverly accessorised so that all your gear can easily find its place, including crampons, poles and ice axes on the front. You can place your skis sideways to ensure a balanced carry.

This bag from the SPEED range helps keep the weight down when setting off from base camps. The hat, the rigid inner structure and part of the belt are removable, to save the grams you need to perform your exploits.

There's also a compartment for a hydration system and functional pockets.