When it comes to ice climbing in the mountains, the easier the better and it’s hard for us to find a larger backpack lighter than the 3400 Ice Backpack from Hyperlite Mountain Gear. This 55L backpack has plenty of space to overcome great obstacles and spend weekends in such places like the Teton grasslands. Hyperlite has reduced the weight of this backpack to two pounds making it from Dyneema, the same fabric which is used in climbing equipment which provides durability at an incredibly low weight. Unique to Hyperlite Mountain Gear Dyneema. Hardline suspension system frames the back panel and shoulder straps with soft foam and mesh separation for breathability and comfort and removable aluminum legs provide additional stability when we need it. Hyperlite Mountain Gear has equipped this backpack with fully taped seams and a roll-top closure for protection from wet weather and snow.. Features an internal zippered pocket for valuables and an external mounting system for crampons and ice axes.