Product Benefits 1.TempShield double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12 2.Insulated Flex Straw Cap is leakproof when closed 3.Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer 4.Wide Mouth opening is ice-cube friendly 5.Color Last™ powder coat stays clean and colorful 6.Bottle fits most backcountry water filters 7.BPA-Free 8.Dishwasher safe 9.Flex Straw Cap not intended for use with hot liquids