The long sleeve polo shirt from Derminpro is a super functional look. With a comfortable mix of polyester and spandex, a cool two-tone design and quality workmanship, every man should wear Derminpro. The photo is meant to show a relaxed fit. I personally vary between medium and large. In this case I choose a size Large for warm weather so I can easily wear a t-shirt underneath if needed. Medium would obviously be a better fit, but I like the layering option. The Derminpro simply offers great protection from cooler weather while still allowing plenty of freedom of movement. I like it. I would highly recommend the Derminpro long sleeve polo shirt to anyone.