The Capacity This 18-liter bike backpack can hold everything you need to ride, including water b, adder, towels, wallets, keys, mobile phones, umbrella and a spare jacket or two. Suitable for daily commuting, cycling and hiking. Suspension System The Poriferous and Meshes EVA design on the back of the bicycle backpack for maximum breathable ability and the heat dissipation. In this way, the back air can circulate freely while driving, drying the back and preventing sweat from entering the bag. The lightweight To release the burden of your travelling, this backpack is made of lightweight waterproof nylon fabric, by which makes this backpack's total weight is only 600g. equivalent to two cans of Cola. Adjustable Shoulder Strap The mesh shoulder strap with plentiful sponge padding is arc-shaped and ergonomically constricted and can relieve the stress from your shoulder and neck. Adjustable chest strap and wast strap can fix the bag so the bag will not bounce while cycling. Attachable Pockets Individual detachable pocket on the shoulder strap which can store your cellphone, wallet, keys, gums, charges, and other items. You can attach the extra pocket anywhere on the shoulder strap. Hidden Tube Channel Both of shoulder straps of this backpack have a hidden channel for hydration bladder tube. The hydration pouch is installed at the top of the main compartment and is fully compatible with most 2-liter water bladder on the market. Easy for drinking water while you are cycling. Reflective Strip The reflective strips on the straps and back of this backpack gonna enhance the reflective effect for safe riding at the night. Helmet Net The helmet net can hold your helmet or football into this well-quality net with a zipper pocket at the bottom. Applications: You can go for the outside biking, hiking, camping, travelling, overnight trip, a day-to-day use and more. LOCALLION Cycling Backpack Biking Backpack Riding Daypack Bike Rucksack 18L LOCALLION Cycling Backpack Outdoor Sports Hiking Daypack Traveling Backpack 18L LOCALLION Cycling Backpack Biking Backpack Riding Daypack Bike Rucksack 6L LOCALLION Cycling Backpack Biking Daypack Rucksack for Outdoor Sports 18L LOCALLION 20L Hiking Daypack Bike Rucksack Outdoor Sports Backpack Unisex Buying Options Buying Options Add to Cart Buying Options Buying Options Customer Reviews 4.3 out of 5 stars 992 4.3 out of 5 stars 1,262 4.3 out of 5 stars 524 4.5 out of 5 stars 25 4.3 out of 5 stars 60 Price — no data — no data $29.98$29.98 — no data — no data