Not too big, not too small — Hydro Flask's 16 oz Coffee Flask is just right. The same size as a large at most coffee shops, this flask delivers your daily caffeine fix without the disposable cup. TempShield™ double wall vacuum insulation keeps your chai tea latte hot for up to 12 hours and your cold brews icy for up to 24. Includes the Hydro Flask Wide Mouth Flex Sip Lid. Designed for hot drinks but versatile for any liquid. Built-in comfy flex strap and leak proof construction sip top. Whether morning will be spent around a cozy campfire or commuting to the office, the 16 oz Coffee Flask will make the day a little brighter.