Lightweight Hydration Backpack Only 200g lightweight design, reducing shoulder burden during long cycling—comes with 1.5L water bladder for easy hydration. 7L Bicycle Bag Combines 1.5L water storage and 7L item space, lightweight yet roomy enough for phone, keys and snacks. Breathable Outdoor Backpack Mesh back panel + lightweight material, keeping back cool and avoiding sweat even in summer rides. Durable Sports Hydration Bag Wear-resistant polyester PU, lightweight but tough enough for running, climbing and daily cycling. Portable Bike Backpack Foldable lightweight design, easy to store when not in use—fits most body types for comfortable wearing. 7L Hydration Backpack Information 1.5L Water Bladder Information lightweight hydration backpack with 1.5L water bladder；1.5L lightweight cycling backpack；bicycle hydration bag lightweight 1.5L；1.5L water bladder lightweight backpack；portable lightweight hydration backpack 1.5L；7L lightweight hydration backpack；breathable lightweight cycling bag；1.5L lightweight bike water bag；outdoor lightweight hydration backpack 1.5L；running lightweight hydration backpack 1.5L；climbing 1.5L lightweight water bag；durable lightweight hydration backpack 1.5L；1.5L lightweight bicycle accessories bag；sports lightweight hydration backpack 1.5L；lightweight 1.5L water bladder bag；1.5L lightweight water pouch for bike；cycling lightweight bicycle hydration bag；1.5L outdoor sports lightweight water bag；breathable 1.5L lightweight hydration backpack；1.5L lightweight bike water bladder bag