Hydro Flask Bottle Boot - Bottom Protector Sleeve - Silicone Water Bottle Accessory Medium Shale Gray

["MEDIUM BOOT SHALE GRAY : Add 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.","FIT: Fits 32 oz - 40 oz bottles","BOTTLE & TUMBLER BOOT: The removable, silicone boot adds extra protection and color to your Hydro Flask bottles and tumblers. Interchangeable, it easily pops on and off to suit your daily style. BPA-Free","DISHWASHER SAFE: Easy to clean, Hydro Flask boots can be hand washed or tossed in the dishwasher."]