Hydration 22L Lightweight Waterproof Running Marathon Hydration Bag Cycling Backpack Mountain Climbing Jogging Trail Running Bicycle Backpack Outdoor

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1. [Ultra-lightweight and waterproof design] Ultra-lightweight running backpack weighing 230g. Made of high-quality polyester material and waterproof, it is safe even on rainy days. A trail running backpack perfect for mountain climbing, camping, and outdoor exploration. 2. [22L Large Capacity & Compact Design] 48cm x 23cm x 17cm Can store a 6.8 inch smartphone + 500ml water bottle + essentials. Also useful as a marathon backpack or cycling backpack. 3. [Comfortable and breathable back panel] XPE cushion + mesh material. Unlike conventional thick sponges, it is comfortable to wear and does not get stuffy. The running backpack is designed not to shake, so you can use it for long periods of time without worry. 4. Multifunctional storage design: Convenient storage solution. Shoulder pocket can hold 500ml water bottle and smartphone. Elastic cord on the back makes this trail running backpack extremely stable. 5. [Foldable for storage] Space-saving design. Can be folded compactly after use. Convenient as a running backpack or a cycling backpack. 1. Water-repellent - Internal sealing, excellent waterproofing 2. Roll-top design - Large capacity storage 3. Breathable back pad - XPE cushion and mesh combination, comfortable back support 4. Perfect for camping, mountain climbing, hiking, etc. 5. 22L, only 230g, compatible with 6.8 inch smartphones 6. Material: Polyester, bust size 68-130cm