Our water bottle bag is made of durable nylon cloth material that keeps water at the perfect temperature. It's for school, work, walking and many other outdoor sports. With an adjustable strap, it will fit types, there's no bottle holder bag to get you through the day! Features -Material: Nylon - Take this bag to be your good companion whether you are just taking a walk or making adventurers such as dry camping, traveling, hiking, biking, etc. - It is heat retaining, waterproof and non-skid, which provides more overall protection for your bottles when outdoors. - Made with nylon material to have great durability and last use. - Coming with the comfortable and adjustable water bottle strap, both and sling style are up to your choice! - Lightweight enough perfectly for adults or children. Portable strap bottle holder to carry with you wherever you go. Package list: 1 x Storage Bag