Osprey EXOS 38 L outdoor backpack is suitable for multiple day travel. Highly breathable AirSpeed back system provides air circulation. Hip belt and shoulder straps feature ExoForm perforation. The lid is removable and height adjustable. It features side mesh pockets with compression straps. It also features compression 7mm straps on the sides. Stow-on-the-Go system allows to attach trekking poles to the backpack.