1.18 l. Wide mouth with flex cap. Colder. Hotter. Longer. 18/8: Pro-grade stainless steel. Sweat proof finish. Comfortable grip. Cold 24 hours. Hot 12 hours. TempShield: Double wall vacuum insulation. Our unique insulation keeps your drink cold or hot for hours so you can stay refreshed for any adventure. HydroFlask.com. BPA & toxin free. Designed in Bend, OR. Made in China.