The superlight Osprey Exos 48 Backpack has enough space for all your gear for weekend backpacking trips in the Uinta mountains in the summer or the Ouray Ice Park in the winter. 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 gel for the ideal blend between breathability and comfort while you hike. This top-loading pack features a removable lid with two zippered pockets for short day hikes during your trip, and the integrated FlapJacket protects your gear from rainy, poor conditions whether the top lid is attached or not. The Exos 48 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. 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 minimal.