The silicone protective boot is designed to fit comfortably around the base of the stainless steel water bottle, offering durable protection against bumps, scratches, and everyday wear. It is made from premium quality, BPA-free, food-grade silicone, absorbs shocks, and prevents noise when placing the bottle on hard surfaces. Compatible with all DOZZE Kids, Cruiser, and Voyager water bottles. Not compatible with Adventurer bottles, other DOZZE tumblers, or other brands.