I wear them if I am going to the beach or in a public shower (that's pretty much never). Outside of those situations, I think they're a poor choice and if it's too hot for enclosed footwear I take to leather sandals, which are more comfortable, provide some support and don't sound like someone's beating off everytime the wearer walks. EDIT: For the record I am a 20 year old Australian Male with a liberal and open-minded attitude to clothing and all else. I am not some "all footwear must be enclosed, a gentleman does not wear shorts," or a "don't wear black" kind of guy. I used to wear them and stopped at age 17, so don't say, "You're close-minded/old-fashioned" or,"don't knock them 'til you've tried them."