- DURABLE, DOUBLE-WALLED, VACUUM-INSULATED 18/8 STAINLESS STEEL BOTTLE KEEPS DRINKS COLD UP TO 31 HOURS OR HOT UP TO 11 HOURS - HIGH-FLOW SPOUT ALLOWS YOU TO HYDRATE QUICKLY - BUTTON-OPERATED AUTOSEAL FEATURE SEALS THE LID BETWEEN SIPS TO ELIMINATE SPILLS AND LEAKS, AND A PATENTED SLIDE LOCK PREVENTS THE ACCIDENTAL PUSHING OF THE BUTTON WHILE YOU’RE ON THE GO - PROTECTIVE SPOUT COVER KEEPS DIRT AND GERMS OFF YOUR MOUTHPIECE, AND DROPDOWN LID FEATURE MAKES IT EASY TO CLEAN - 100% BPA-FREE FOR