Fish off the stern? There always are in the AFTCO Stern Long Sleeve Button Down Shirt. The features are endless in this long sleeve button down fishing shirt. Enjoy the 90% polyester 10% spandex blended shirt giving you a ton of comfort in the hot sun, and dont worry about the suns rays because the Stern boasts UPF 50 sun protection protecting you from 98% of sun's harmful rays. Vertical rear vents allow body heat to escape efficiently and that helps with the 4 way stretch and lightweight fabric making this the lightest best long sleeve shirt for fishing.