Insulated Water Bottle Carrier for Hydro Flask, Klean Kanteen - Neoprene Holder Case with Adjustable Shoulder Strap - fits 18oz, 21oz, 32oz, 40oz Bottles Ideal for outdoor activities, hiking, biking, camping Perfect for school field trips Neoprene provides padding to protect bottles from dents and scratches Adjustable strap (up to 5 feet) fits all body types on the shoulder or around the waist Machine wash, air dry, easy to put on and take off