• Keep your drink colder even longer with The Hydro Flask insulated Sport Cap. It works with any Standard Mouth Hydro Flask to provide the ideal solution for on-the-go hydration needs.
• Our unique internal valve eliminates the whistling associated with most sport caps, while the ergonomic design makes it comfortable to drink from and allows for one-handed open and close.
• Ideal for any outdoor adventure or just around town.
• Like all Hydro Flask caps, our insulated Sport Cap is made from PP#5, is BPA-free and backed by a lifetime warranty.
• It features a removable spout for easy cleaning.
• The Hydro Flask insulated Sport Cap. Stay colder even longer.
Care Instructions: ONLY hand-wash the Hydro Flask caps in hot, soapy water. Washing them in the dishwasher can cause the cap to leak.