So the popular thing when I did high school athletics was to wear slides with socks during the summer. Almost every jock did it and I still wear them all the time a year later. It's just very cool and comfortable compared to shoes in the Southern sun. Some people (mostly women) have told me I look like a major tool bag wearing them. Do I really? Here's a pic:
No, don't worry, it's fine! sometimes it depends on the type of slide, but those are fine. It may look a little better with white socks vs. black ones like you have on, but otherwise, don't worry. And who cares what other people say anyway? if you like it and it's comfortable for you then wear em! Fuck the haters!