Keep the water in your 12oz Cirkul Bottle chilled, your bottle insulated, and your hands dry with our new insulated 12oz Chill Sleeve! With a new color for each day of the week your Cirkul bottle will be the coolest bottle on the street ; )Choose from 12 awesome colors and enjoy refreshing hydration happiness! Material: Insulated Neoprene Contoured to fit our ergonomically shaped bottle and hug the curves of your hand