... reusable, cold effectiveness longer More cheaper, Carry advantage Sanitation, FILL WATER ICEBAG -800ml Gel pack; Ice pack; Gel pouch; ... You can use this Ice gel pack just after fill water and freeze.This Ice gel pack not wet ... can insert the water tap in the jaws to fill water, the water will not leak, then the gel ... are available upon the order.Material: polyethylene, crystals FILL WATER ICEBAG -800ml