normally wear medium tall, medium or occasionally large in ON athletic tops. 5-8", 36C, 140lbs. I wanted a looser fit so I ordered large tall. body was a definitely looser fit, sleeve length almost too long, but ok. but the neckline was too wide and deeper as compared to models picture. the fabri...c is soft, thin would be great for summer sun protection or as a layer under sweater. I really like this fabric! I think the neckline being too big is a me problem ordering the large talls. dk blue is ok color, gray is well, light gray not white, but the blue/purple shown on model isn't that bright it's same color but light hue, really nice. I wanted to exchange these in store for medium tall online, but in store couldn't do that it was either return and get my $. back or get store credit. I'd have to order online again and not get the discount price I got using my super cash. bummer. might try to reorder next super cash time.