Normally I order a large SB athletic top since I like them to be very roomy. A large in this top was much larger than for previous SB tops. Great vibrant blue color that matches many of my SB workout tights. am going to keep it because I need a top in this color and the smaller sizes were not available when I ordered. Nice lightweight fabric with vented section in the back to prevent overheating. Originally posted on www.sweatybetty.com