Featuring the Aquatix Protective Silicone Sleeve for the Aquatix 21oz Flip Top Bottles. Help protect the base of your bottle with our lightweight anti-slip sleeve; and prevent scratches, dents and dings. Bring color into your live and accessorize your Aquatix 21oz FlipTop Bottles with our multicolored sleeves and cap straps. Your purchase will be backed by a 100% money-back guarantee.