The AYR button up is a staple in my closet so of course I had to purchase one in every color. I’ve worn this purple stripe version only a handful of times and it’s in great shape (see close up on very clean armpits - I always wear undershirts). I prefer to not wear much color so selling her. Designed for a loose fit - pairs well with loose plans. Recommend taking your true size. If between sizes, suggest sizing down. However, I’m 5”9 and I’ve found the medium to be rather short in the arms. I prefer the large for the striped AYR button ups. 70% Cotton/ 27% Nylon/ 3% Spandex.