Vacuum-insulated for maximum temperature retention keeps beverages cold for 18 hours Unbreakable stainless steel interior & exterior provide durability that you can count on One-hand operation for hydration on the go Carry loop for easy transport can be locked down when not in use Lockable, leak-resistant lid also helps keep spout clean Non-slip silicone bottom provides quiet set-down on any surface BPA & lead free Removable cap gasket for easy cleaning