When your favourite beverage is just too good to put down, Hydro Flask has got the mug for you. The 24 ounce (710 ml) Mug is a tea, coffee or smoothie lover's dream, keeping the temperature of drinks stable for hours. Closeable Press-In LidSlides shut to tame splashes and trap temps, then slides open wide enough to fit straws. TempShieldThe unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.