Shop over 140 styles of ladies' and men's button-down, denim and easy-care Port Authority Shirts. Sold blank or customized with your event or company embroidered or screen-printed logo. This brand is the source of their Silk Touch polo collection. Realizing just how varied the sizing demands can be in the workplace or school, you will find sizes to plus 10XL. Port Authority shirt size charts are online to take most of the guesswork out of ordering.