The Hydro Flask 32oz Wide Flex Straw Travel Bottle in Birch is your ultimate hydration companion. With a durable 18/8 pro-grade stainless steel construction, it fits snugly into most car cup holders thanks to its narrow base. Featuring TempShield™ insulation, it keeps beverages cold for up to 24 hours and hot for up to 12 hours, complete with a flexible strap and flip-out straw cap. This BPA-free and phthalate-free water bottle is a smart choice for on-the-go refreshment.