Zojirushi MIZUNO Thermal Stainless Cool Bottle 1.03 liter ( 34.8 oz. ) | SD-AM10-BA (Japan Import) Because it is convenient hook with, to be able to put over to the fence of the ground side. I can use in the washing machine porch because it is strong. (Please select the hand-washing course and into the net.) fastener sand is hard to enter. durable bottom cover to protect from scratches body.