Doleesune 2278 Outdoor 45 Internal Frame Pack Hiking Daypack Climbing Cycling Backpack Lightweight (Blue) Powerful removable suspension system, breathable perspiration, relieve burdened BIG FEATURE: Can be use for 2 ways: hiking daypacks, and school bag Powerful Bear Breathable System, the heat could quickly spread out, avoiding the embarrassment of sweat, also it's more comfortable for your back 3 front pocket, a main pocket,A bottom rain cover pocket, 2 Hipbelt Pockets cell phone/MP3 player Size: H20x L12.5x W6" Capacity: 40L