The cap fits my 64oz and 40oz bottles (hydroflask knockoffs) and I like the big handle that twists down when it's on is not used. However, it often leaks. It seems like you have to screw the cap on just right for it to be watertight - a little too tight or a little too loose and it will leak. When I hold the bottle upright, the cap and straw work great. But when I put it on its side, it often leaks. After I bought this, Vmini emailed me and said they would send me a free straw case if I wrote a review. I wrote one and followed their instructions. They sent me a code to get a 99% discount cap. They told me they only cover five star reviews (although a good four star review was sent to me). After realizing that lids can leak, I edited this review. They probably managed to inflate their ratings for Revain. just know
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