Thickening of the bag body, the material of TPU, tear-resistant and high impact.  

Product Specifications: 1.0L-3.0L Characteristic: Thickening of the bag body, the material of TPU, tear-resistant and high impact, with dark green food-grade software-absorbent tube, the material in the U.S. FDA or NSF food grade standard, non-toxic and tasteless. The water bag can be put into the water bag backpack 35L, to supply for the field, marching, or other outdoor activities, it is convenience for drinking water any time.

water bladder