Flip it and sip it with the Hydro Flask 40 oz Wide Mouth Bottle With Flex Straw Cap. With a comfortable, flexible handle, the reusable water bottle with 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 insulated bottle easily fits ice cubes and is dishwasher safe. 24 hours cold. TempShield® double-wall vacuum insulation. Leakproof when closed. Won't retain odor or leftover flavor. Wide Mouth opening is ice-cube friendly. BPA-Free. Dishwasher safe. Easy to clean by hand or dishwasher. Stays clean and colorful. Flex Straw Cap not intended for use with hot liquids. Not for use on a stove, in a microwave or freezer. Keep hot drinks out of the reach of children. Bottle fits all Wide Mouth caps and lids, including the Flex Chug Cap, Flex Sip Coffee Cap, Flex Straw Cap, Flex Cap and Stainless Flex Cap. 32-40 oz Flex Straw Bottles fit Medium Bottle Boot. 24 oz Flex Straw Bottle fits Small Bottle Boot. All the colors, only from Hydro Flask.