The Hydro Flask 40oz Wide Mouth Water Bottle w/Flex Cap is specifically formulated to keep your hots hot and your colds cold. From the double wall vacuum to the stainless steel material, the endless features of this water bottle are sure to make it your new favorite. The newly added Flex Cap, made from light and flexible TPU material allows for easy carrying. A honeycomb designed insulation helps to further ensure your desired beverage temperatures.
Hydro Flask® has created a reusable water bottle that truly performs in any environment. They are made from 18/8 stainless steel and feature double-wall vacuum insulation that ensures the temperature of the liquid inside never mingles with the temperature of the environment outside. Your hots will stay hot for up to 12 hours, and your colds will stay cold for up to 24.
Wide mouth construction. (2.25")
Double wall vacuum insulated.
18/8 stainless steel.
Durable, sweat-free powder coat or classic stainless finish.
Ideal size for all-day hydration.
Fits most backcountry water filters.
Stay cold up to 24 hours and hot up to 6 hours.
BPA- and Phalate-free.
Stainless steel pivots keep Flex Cap handle secure while also allowing for smooth movement.