Bump & ding protectionMake your Hydro Flask your own with a colorful durable silicone Bottle Boot that protects against bumps and dings. Specifically sized to fit our 12-24 oz Wide and Standard Mouth bottles.Fits 12-24 oz Wide and Standard Mouth bottlesFits 32-40 oz Travel Tumblers and Travel BottlesRemovable silicone boot adds extra protection to your Hydro Flask bottle.BPA-FreeDishwasher safeNot for use on a stove in a microwave or freezer.