water bladder bicycle baldder hydration bladder: 1)Material:TPU 2)MOQ:500pcs 3)Water bladder:1.0L,1.5L,2.0L,2.5L,3.0L. water bladder bicycle baldder hydration bladder: 1)Material:TPU 2)MOQ:500pcs 3)Water bladder:1.0L,1.5L,2.0L,2.5L,3.0L. water bladder