For those ascending with additional gear, think sleeping mats etc, the adjustable side compression straps can be used for securing these to the frame of the sack. An ingenious touch is the removable, mono mesh waistbelt. This is ultra light and includes two durable, integrated gear loops – the same as you would find on an Edelrid harness - making it as easy as possible to access your rack.

With comfort as a consideration the Helix 25 includes air permeable shoulder straps as well as 3D mesh back padding, making light work of heavy loads. The removable back plate also allows the Helix 25 to be worn close to the body without restricting freedom of movement.

Additional features include an integrated packing loop for internal organisation as well as dual Hypalon ice tool attachments for safe and convenient stowage of axes.

The Helix 25 is available now from select UK retailers.