TempShield insulation keeps beverages cold up to 24 hours and hot up to 12 hours Made with 18/8 pro-grade stainless steel to ensure durability, pure taste and no flavor transfer Flex Cap is leakproof when closed, to transport without worry Flex Strap is easy to transport and comfortable to carry International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.