Give 'em the bootAdd some personality and extra protection to your Hydro Flasks. We’ve overhauled our boot sizes to ensure a perfect fit and make it easier for you to mix and match. Check the size chart to ensure a great fit.Fits 24 oz Travel Bottles all 24 oz Travel Tumblers 20 oz All Around™ TumblersSee Fit Chart for current sizing.Removable silicone boot adds extra protection and color to your Hydro Flask bottleBPA-FreeDishwasher safeNot for use on a stove in a microwave or freezer.