Flip it and sip it with the Hydro Flask Western States 24 oz Wide Mouth 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. Details: 24 hours cold TempShield®️ 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