A small backpack with water bladder inside
1. Fabric: 600D polyester or 1000D Cordura
2. Size: 10x25x35cm 8x35x50cm
3. Color: 8 kinds of camou. Black, khaki, and O. D.
4. PP webbing and plastic buckle, a water bladder (3L) can be put inside.
5. Function: It is very convenient to bring it with the body, and keep the liquid same temperature for a long time