Small itchy brown bugs crawling on me?

I was at band practice and these little brown squirmy bugs kept crawling on me and I mean nobody e.lse was getting them! They itched and were all over my clothes and they had wings but didn't fly. Please don't tell me to wash lol because believe me I did and they're gone now. I just want to know what these bugs were and where they came from. Thank you in advance:)