My husband is 6 ft 3in tall. He's normally an xL-T (extra large Tall). I ordered an xxL in the longest arm length & biggest neck size. Through the neck and chest area it fit. But the sleeves were too short for him and the shirt was way too short torso wise.I bought both my son and nephew this brand for a dress shirt and really liked it. So I went with this brand again for my husband's dress shirt. If they had an xL Tall or xxL Tall as an option, this shirt would have been perfect.