One of the things I like about this shirt is that it really does breath well. Some of the polyester shirts will get damp, and sometimes they are too thick. The Huk Waypoint hoodie is made of a unique material that keeps the sun off of you while letting the air flow through it. I always order up a size with sun hoodies because I want the clothing to be loose so air flow is maximized. I have been so pleased with this hoodie for fishing in the summer.