621ml (21oz) Standard Mouth Flex Straw Bottle – Mermaid Green

Flip it and sip it with the Hydro Flask 21oz (621 ml) Standard Mouth Bottle With Flex Straw Cap. With a comfortable, flexible handle, the closeable, leakproof straw cap is easy to open and close with one hand, for on-demand hydration.

Double-wall insulation keeps drinks cold up to 24 hours for cool refreshment. The slim design fits most cupholders and is dishwasher safe.

Founded in 2009 in beautiful Bend, Oregon, Hydro Flask’s mission is to save the world from lukewarm. Hydro Flask will keep water icy cold until the end of your morning run, provide refreshment after a yoga class and serve up piping hot spicy chai after a long day.