KOLD. Water Bottle 18oz - 40oz Coldest Vacuum Insulated Stainless Steel Sports Bottle, Wide Mouth, with Caribiner Handle Lid, and 5 Different Colored Silicone Sleeves The KOLD.40 comes with a lifetime warranty Constructed with 18/8 stainless steel, is BPA free, and food grade quality Double walled and vacuum insulated to prevent condensation on the outside and temperature transfer Stays KOLD for up to 24 hours High quality powder coating with silcone sleeve for easy opening and sealing