TempShield️ double-wall vacuum insulation keeps contents cold up to 24 hours. 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. 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. A Wide Mouth water bottle with Hydro Flask's leakproof Flex Straw Cap-easy to fill easy to drink. Open it up add your ice and flip to sip.