Wide Mouth with Flex Straw Cap Our Wide Mouth water bottle paired with our leakproof Flex Straw Cap is easy to fill and easy to drink. Open it up, add some ice, and flip to sip. Features: • TempShield® double-wall vacuum insulation • Insulated Flex Straw Cap is leakproof when closed • Made with 18/8 pro-grade stainless steel • Wide Mouth opening is ice cube friendly • Color Last™ powder coat • Bottle fits most backcountry water filters • BPA-Free • Dishwasher safe • Flex Straw Cap not intended for use with hot liquids