Overview:

Easily and quickly replenish water through the plug-and-play system,

 which can be opened through the mouth, and the specially designed on/off 

system can firmly close the valve during the journey, thereby completely

 preventing dehydration
PVS and BPA-free TPU (thermoplastic polyurethane) materials
The hose compatible with all Aonijie backpacks, side air outlets, 

nozzle protectors

Specification:
Capacity: 2.5L/3L
Product category: water tank
Have licensable own brand: Yes
Whether cross-border export exclusive source of supply: Yes
Color: Army Green 2.5L, Army Green 3L

Package Content:

1x water bag