ALL MATERIALS BPA FREE AND FOOD CONTACT SAFE.SINGLE WALL TRITAN PLASTIC CONSTRUCTION, WHICH IS LIGHTWEIGHT YET DURABLE, SHATTER AND STAIN RESISTANT.SCREW-ON LID, WITH FLIP TOP SIPPER AND STRAW.SILICONE SLEEVE FOR BETTER HANDLING. 3 COLOR ASSORTMENT. 12OZ CAPACITY.ExpirationThis product has no expiration date or the manufacturer has not provided an expiration date.