After several; rounds of surgery for skin cancers [some were melanomas] I was advised to start wearing the breathable uv enhanced long sleeved fishing shirts to keep the sun off my hide. I've bought a mess of such shirts and some of those are the Do-It Performance long sleeved shirts. I have a hard time saying enough about them.
These shirts are breathable and fast drying but more importantly they keep the rays off your hide and are in fact cooler to wear than most cotton shirts. With the weather getting cooler now I have begun switching back to cotton long sleeved tees but keep the Do-It shirts on standby should a day be forecast to get warm. I've been in rain wearing these shirts and they dry in a minute with some breeze. The fabric is just plain great making the shirts super nice to wear, plus they look great.
The best part is the pricing on these shirts. Other brands can cost twice as much and offer nothing more.
I know I sound like a broken record on this skin cancer stuff but it can kill you if you're unaware of having it. Taking a simple precaution like wearing a shirt, or the neck gaitor, that helps minimize uv ray exposure is such a simple thing to remedy. Sunscreen and a good hat are the other components of being "covered" and, too, are very easy to put to use. Skin cancer is serious stuff and these shirts along with sun screen and a cap go a long way in prevention. Think about it.