With the Osprey Stratos 34 Backpack, we're ready for any mountainous adventure whether it's hiking, climbing, or backpacking for a night. This pack fits all the gear we need for a day at the crag, food and snacks for a full day hike, or even the necessary equipment to spend a night out in the woods. We particularly like how this pack's LightWire alloy frame optimizes our load's balance as well as enhances the ventilation system with the help of the AirSpeed back panel. Add that to the sewn-in spacer mesh at both the waist-belt and the shoulder straps, and we're ready to tackle anything in the mountains without a sweat.