Adventurous guys just can’t leave well enough alone. They’re always chasing after something better around the next bend. Same goes for our UPF 50+ Action Shirt – even with dozens of 5-star reviews from happy customers, we knew we could tweak even more performance out of it. So we rebuilt our best-selling summer shirt for maximum comfort and protection when you’re working under the beating sun. Its 3.4-oz. 65% polyester/35% Coolplus® ripstop polyester fabric feels crisp and light, yet stands up to tough treatment on the job. Better yet, it wicks sweat and evaporates it fast – never feels clammy or clingy, even in swamplike conditions. Ingenious hidden mesh vents at front and back give you refreshing shoulder-to-shoulder air flow, while keeping buzzing, biting pests out. Armpit Gussets and bi-swing back free you up to bushwack your way through underbrush. Plus it’s loaded with all the functional features at right. Cut trimmer than our standard Tradesman Fit for improved wicking. When you’re in the heat of the action, you need a shirt that’s up to the task: the ever-improving Action Shirt.