Please Note:this item only have backpack,not include bladder and hose Feature: Brand:COOLCHANGE Size:22×8×42cm/8.67×3.15×16.54inch(L×W×H) Weight:250g Portable:Can be folded. Safe:reflect light at night Waterproof:Tear-resistant & waterproof nylon fabric Light weight type Keep you free and no burden anymore Product information Keep your back dry and breathable Lead air, breathable and moisture wicking Splashing water proof Nylon fabric with superior waterproof performance to protect the bag from splashing and keep dry .