This set is one of my favorites. I wish they had this in more designs bcuz I would buy all. Great quality! I weight 191lbs, 5'10. I ordered a size MEDIUM. Now, depending how u like your clothes fitted depends rather u size up or not. If u like well fitted, order your size.....if u want a little room, size up. As u can see I could have sized up for my shirt but then I would have risked my shorts being a little big which is the con.