1L double-walled stainless steel and vacuum-insulated. Our TSK drink bottle keeps liquids cold for 24 hours and hot for 12. Our bottles not only look good, with a luxe, satin finish in our iconic terracotta colour, but they are leak-proof, shatterproof, condesation free and BPA free. They fit in just about every cup holder, with a sturdy screw-top lid, so you can take your hydration buddy with you everywhere.