The Osprey Exos 58 Backpack has space for your backpacking trips in summer and ice climbing trips in winter, and it'll carry your gear without adding excess pack weight to your trip. A combination of the AirSpeed back panel and the light yet durable 6065 aluminum frame brings a lot of breathability by dumping excess heat out of the sides. ExoForm covers the shoulder pads and waist belt with mesh and energy gel for the ideal blend of breathability and comfort while you hike. This pack features a removable top lid with two zippered pockets for short day trips during your trip, and the integrated FlapJacket protects your gear from rainy, poor conditions whether the top lid is attached or not. The Exos 58 also features two mesh side pockets for water bottles, two zippered pockets at the waist belt for any small item you might need on the trail like sunscreen or lip balm, and a front stretch mesh pocket for maps, books, and acompass. It also has straps for a sleeping pad, and you can remove both the sleeping pad straps and the compression straps when you're going super light. There's an attachment loop for an ice tool or two, and a tie off point for excess gear.