Thermos 530ml Stainless Steel Vacuum Insulated Hydration Bottle is constructed with durable double wall stainless steel and Thermos vacuum insulation technology. This hydration bottle keeps beverages cold for up to 14 hours. Features an easy-to-use, hygienic push button sipper lid with locking ring for easy, one-handed operation. Sweat-proof design won't leave water rings. Comfortable rubber grip. It fits most vehicle cup holders. Capacity: 530ml. Available in midnight blue color.