Features:

Safe non-toxic TPU material

Compressive resistance to abrasion

Tube connected to the bottom of the bladder

Can be put into backpack and backpack's shoulder strapstrap

Can be used to store water with -20 to 50 degree Celsius

Specifications:

Color: As picture

Material: Non-toxic TPU

Capacity: 2.5L

Package includes:

1 *2.5L Water Bladder backpack

1 *Protable3L Water Bladder Bag Hydration System Pack Backpack Hiking Camping