The water bottle carrier made of thick neoprene,solid stitching,very sturdy and well made,non-toxic,eco-friendly,Shockproof,Waterproof,Dustproof,Washable,Reusable,Breathable,anti-static,scratch-resistant.This Holder is a great accessory for your steel tumbler your tumbler slides down into the pouch completely.Can open Portable handle Buckle.Handle Rope length 4.33",wide 1.2",Strong enough.These drink holders,It is good idea to use them a necessity,moving,summer,travel,concerts,travel,etc.