1. The bag is made of high-quality nylon fabric,attractive and durable.
2. The interior is in double-layer bag design,convenient and practical,could eazy for take water bladder and other things.
3. Adjustable chest and shoulder wider straps,thickening and soft back design,made the bag more comfortable to use.
4. There are  multiple reflection strips on the bag,make the travel more safty in the night.
5. It come with a high-quality water bladder with is made of environmental protection material?and has on/off valve .
6. The bag could be widely used in cycling, hiking,climbing and other sporting activities.

Specifications:

1. Backpack material: Nylon
2. Color: Black, Red, Blue, Orange.
3. Weight: 340g
4. Bladder capacity: 2L