The Hydro Flask Travel Bottle with Flex Straw Cap 32oz keeps drinks cold for up to 24 hours and hot for up to 12 with TempShield® double-wall vacuum insulation. Designed with a leakproof Flex Straw Cap (not intended for hot liquids), this bottle features a wide mouth opening that’s ice-cube friendly and easy to clean. Made from durable stainless steel with no flavor transfer, it’s BPA-free and fits most cup holders, making it perfect for custom branding or everyday hydration. Not for use on a stove, in a microwave, or freezer.