The Narrow Mouth Loop Cap is a leak-proof, vented cap that allows hot vapors to escape while closing the lid, ensuring a smooth and easy seal. The cap helps to keep your Hydro Flask contents hot or cold. There is a loop that allows you to clip your flask to a backpack or messenger bag, making it easy to carry around. Our patent-pending loop caps are made from polypropylene PP#5 and are BPA-free and 100% recyclable.
All prices are in USD.