Review on Flex Sip Lid for Hydro Flask Wide Mouth Bottles by Ryan Marx

I like that this cap makes it easy to drink from the bottle and less water collects in the spout as this cap is easy to remove and dry out. The reason I gave it 4 stars and not 5 is because it can leak. It happened yesterday when water got on the seat of my car. Not much, but still. It's possible the cap wasn't screwed all the way in, although I don't think it was because I saw a red mark and when I tried to unscrew the cap further I couldn't. But if so, then perhaps the lid should be designed to click into place to indicate it's locked.