10L Outdoor Running Cycling Hydration Backpack with 2L Water Bladder 
Color: Blue
We may still have Black - Grey, Rose Red, Black - Green in stock. Pls leave the color information in the delivery instruction when you buy. Thanks
Main Features:
10L Large Capacity
Its modest volume and 10L large capacity allow you to fill the water bag easily. Consists of main water bag pocket, one retractable drawstring mesh pocket, two water bottle pockets on and two zippered pouches on the shoulder strap which you can store vacuum cup, keys, cash, etc. These pockets also allow you to get the things directly, extremely convenient. 
Fit:
Fit is one of the most important factors in a comfortable backpack, but it's also one of the toughest features to pin down until you have a pack fully loaded and on your back.
This item comes with an adjustable chest strap and shoulder strap, fitting most body sizes. Besides, it can fit your back closely, getting rid of rocking.
Weight:
When it comes to hiking, the shorter you plan to spend on the trail, the lighter pack you'll need. 
The Tanluhu hydration backpack features a super lightweight, reducing much of the load during the trip. 
Material:
Durability means a strong frame and material. 
Made of ultralight water-resistant and tear-resistant nylon, polyester lining and breathable mesh, the product devotes itself to an effective helper, not only comfortable but thoughtful. 
Reflective Strip
Reflective strip on the shoulder strap and logo pattern, ensure your safety for night cycling.
Versatility
This backpack can be used for more than just hiking. 
It is suitable for almost all outdoor activities such as running, riding, camping, marathon, etc.
Specification: 
Capacity: 10L
Bag size (L x W x H): 14.57 x 7.48 x 3.54 inches
Shoulder strap length: 45 - 61cm / 17.72 - 24.02 inches
Chest strap length: 10 - 34cm / 3.94 - 13.39 inches
The maximum loading weight: 10kg
Package Includes: 
1* Running Cycling Backpack 15L
1* Water Bladder 2L