18/8 Stainless Steel and BPA Free Plastic | Imported | 32 OZ BLACK BOTTLE: Fill and refill with the Hydro Flask Wide Mouth insulated water bottle with leakproof cap. With a comfortable, flexible handle, the bottle is easy to grab and take anywhere. Double-wall insulation keeps drinks cold up to 24 hours and hot for 12 for ideal refreshment. | 24 HOURS COLD. 12 HOURS HOT: The insulated water bottle keeps drinks cold for 24 hours and hot for 12 thanks to double-wall vacuum insulation. TempShield insulation is designed to be lightweight and efficient temperature retention, keeping contents ready to sip. | LEAKPROOF: Say goodbye to leaky water bottles. The Hydro Flask Flex Cap is leakproof when closed. Toss it into your bag without worry. | PURE TASTE: Durable pro-grade stainless steel ensures pure taste and no leftover flavor transfer. So, today's water won't have any taste of yesterday's iced tea.