Will it really keep you "cool" and make you cool (person)?? ??

Warm spring weather in Indiana..ahh! It has been beautiful for the last 2 days here..I love it. But I've also been seeing the worst no no everywhere on this campus. Why must people think it's warm and decide to wear sandles but then not have the guts to take their socks off? What's the point of sandles if you wanna keep your socks on? It's like wearing a swimsuit with a sweater underneath it. dumb dumb..