Fidlock TWIST 450 Thermo Sleeve Keeps Your Drinks Cool Don't ride around with water that's warm enough to make tea. Keep your water bottle insulated. The Fidlock TWIST 450 Thermo Sleeve provides optimum insulation for chilled drinks. Perfect for hot summer days on the bike. Simply slide the TWIST bottle into the TWIST Thermo Sleeve, close the zipper, and get started. The precisely fitting TWIST connector recess guarantees optimal function of the TWIST mechanism. The offset recessed grip, combined with the flexible chloroprene rubber material, fits perfectly and offers grip in every situation. The TWIST Thermo Sleeves are available for TWIST bottles with volumes of 450ml, 590ml, and 600ml. Features Designed to keep your drink cool for your warmer rides Available for TWIST bottles with volumes of 450ml, 590ml, and 600ml Simply slide the bottle into the Thermo Sleeve and close the zipper | Fidlock | Twist 450 Thermo Sleeve Black | Rubber