Hikingworld 40l Multipurpose Outdoor Sport Backpack, Padded Laptop Backpacks Material: Nylon fabric, water-proof coating and light cotton lining. wear-resistant and Utility. MOLLE COMPATIBLE: MOLLE attachment keeps the weight near your center of gravity Thick Mesh padding is just great, it helps to have the mesh that allows air flow to the skin to keep yourself relatively cool. Water-repellent: PVC waterproof coating, never get bag items wet. The Main pockets is big enough to load the 15 "laptop and accessory, Outer smaller pocket great for A4 magazine and what you need.outest small two pockets are excellent for quick access .