Specification:

1.Multiple pockets design with 3 zippered pockets, 2 waist pocket and 1 compartments
2.Made of water repellent fabric, anti scratch, heavy-duty enough for long term use
3.3L water bladder is made of No BPA, No odor and leak-proof TPU material. And it's designed with a large diameter opening（3.5” diameter）for easy filling, cleaning or adding ice.
4.The size of this hiking water backpack is 18.5*11*4.3 (inch), and weighs only 1.3 lbs, it will not bring you a burden in the outdoors, and enables you to go for a long day's hiking without stress.
5.The total capacity of the Hydration Backpack is 18L, and it has multiple pockets to meet your needs for storing various necessities

NOOLA Hydration Backpack Product Details
1.Waist pockets (Size: 7 * 4 in) on both sides are perfect for storing your phone (For example Apple 13) and other small items
2.Both the back and shoulder strap are constructed with breathable padding, relieving the pressure on your shoulder
3.Largest main pocket fits a 14" laptop and other outdoor items
4.Easily installed on left or right shoulder strap to help secure your tubes for easy drinking.
5.The unique multifunctional helmet clip can fix your riding helmet when you rest, which is undoubtedly the best choice for biking.
6.Supplying you with cold water for 4-6 hours, our thermal-insulated backpacks are the perfect solution for all your hydration needs.

Professtinal 3L Water Bladder:
1.Ergonomic handle, easy to grip when filling water and the 3.5” diameter opening allows the easy operation to fill water, add ice, or clean
2.TPU hose comes with an anti-dust cover, always keep it in clean condition
3.Self-lock hose connector socket allows you to remove the hose quickly without any leaking