A 24 oz Wide Mouth water bottle with Hydroflask&';s leakproof Flex Straw Cap-easy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to 24 hours. TempShieldA(R) double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12 Insulated Flex Straw Cap is leakproof when closed Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer Wide Mouth opening is ice-cube friendly Color Last(TM) powder coat stays clean and colorful Bottle fits most backcountry water filters BPA-Free Dishwasher safe Flex Straw Cap not intended for use with hot liquids Not for use on a stove, in a microwave or freezer