Extremely airy (especially for SC summer weather), but not too see-through! I intentionally bought it just a little bigger, n it felt it flowed n hanged perfectly, regardless on how I decided to wear it, front tucked in with back hanging out, or all the way tucked in. The option to have the sleeves folded n buttoned 3/4 long or left the sleeves long … to me, looked great!!! Bought other colors n patterns for this shirt!! I love these shirts!!!