Sizing and brand question.

Hey everyone.Looking to get my 1st tracksuit. Two questions.Is there a major difference between Alpine Stars and Dainese? Is one better than the other?Sizing...I'm 5'9 and 145 lbs, thin and not a big frame. Anyone out there around this size and if so what size suit did you get?Thanks! via /r/Trackdays https://www.reddit.com/r/Trackdays/comments/g0ags1/sizing_and_brand_question/?utm_source=ifttt