They are functional as a water shoe. Interesting design. Inside sock can be removed to effectively clean out sand. A bit of a chore to get the shoe reassembled. My dissatisfaction is in the fit. I ordered a 7-8 as I wear a 7.5 or an 8 in literally every type and style of shoe. Buying a 9-10 seem insane. I don't think the the next size up would be a better choice as they run wide. I just know that when I slip them on for a trek out into the ocean that my big toes will be a bit scrunched. Also, I couldn't use these as a walking or running shoe due to the fit. These are single task shoes for sure. They are holding up well with fairly rough use and most water shoes do not so that is a real plus.