Flip it and sip it with the Hydro Flask 24 oz Wide 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, easily fits ice cubes and is dishwasher safe. 24 hours cold TempShieldA(R) double-wall vacuum insulation Leakproof when closed Fits most cupholders Pure taste, no flavor transfer Wide Mouth opening is ice-cube friendly BPA-Free Dishwasher safe Flex Straw Cap not intended for use with hot liquids Not for use on a stove, in a microwave or freezer Bottle fits all Wide Mouth caps and lids