FABRIC AND REFLECTIVE TAPE CERTIFIED TO RIS-3279-TOM AND EN ISO 20471.The only Network Rail approved rucksack. Rail approved waterproof material. Encapsulated retro-reflective 50mm tapes (EN20471). Recommended load capacity 7kg. Waterproof base. Fully waterproof/rip-proof instructions. Internal padded laptop compartment. MP3 slot, key clip, rip-stop material, moulded grip. Side zipped pockets with storm flaps.