Features: Craft from watertight nylons, this backpack features multiple pockets for storage and adjustable shoulder strap for a comfortable fit. Experience the convenience in outdoor hydrations with our water bladder backpack, designs to keep you refreshing and hydrated on outdoor. Great for outdoor sport enthusiasts such as cyclists, hiking, and trekkers who prioritize convenience and efficiency during their adventure. With its watertight designs and large capacity, it keep your belongings dry during outdoor sports; This cycling backpack is perfect for outdoor activity. Enhances your safety with reflective strips that increase visibilities during night ridings, making this backpack a great selection for those who prioritize functionality and security. Specifications: Materials: Watertight Nylons Color: Orange/Green/Blue/Black/Gray Package Weight: approx.330g Size: approx.46x25x8cm/18.11x9.84x3.15in Package Includes: 1Pc Hydrations Backpack Pack note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!