Your sleeping bag is one of the bulkiest and heaviest parts of your alpine climbing kit, but it’s a necessity that can’t be left behind. Patagonia introduces the Hybrid Sleeping Bag for light and fast alpine climbing by following the fundamental tenet of minimalism — eliminating redundancies.

The system is divided into two halves, with your lower body taken care of with the 850-fill-power Traceable Down incased in an ultra-light weight Pertex Quantum shell fabric, while the bag continues above for your upper body with a single layer of light, windproof nylon fabric. Paired with your belay parka, it creates a heat-trapping cocoon so you can stay warm without the redundancy of having more insulation in the sleeping bag itself, allowing you to conserve your energy to push for the summit without wasting it on lugging unnecessary weight.