I bought this for my hydro flask wide mouth 42 oz. It came with a black cap, but its mint and I thought white would look better. I was right. This also fits perfect!!! So many people reviewed saying theirs didnt come with straws. Mine came with 2!I ordered this because I wanted a white straw lid for my hydro flask, and this fits my wide-mouth 32oz bottle perfectly.Worked great for my white hydro flask. Has more of a warm white compared to my flask but I don’t mind. Also you can use with or without the straws. Love how it comes with 2. And a measurement on were to cut.I like the straw cap it came with two straws but it leaks everywhybecause the little silicone nub that's supposed to let air in but preven leaks wasn't there :/works great on the thermos