Gonex Mountain Backpack Outdoor Camping Backpack Bag Foldable(Black) Breathable mesh shoulder straps, both sides holder bag for small accessories. Powever removable suspension system, breathable perspiration, relieve burdened. Powerful Bear Breathable System, the heat could quickly spread out, avoiding the embarrassment of sweat, also it's more comfortable for your back. Soft interlayer sponge, buffer shock absorption, reduce the pressure of body contact area, further enhance with comfort. Lightweight and packable, great for outdoor activities: travelling, hiking, trekking, camping, climbing, riding, etc.