Ok, so these are decent shirts for indoor while working out, or on cooler outdoor days. However, I have noticed when it is in the 70’s or above, these shirts feel like they are on fire. Literally. Forget any protection from the sun. Conversely, it feels like there is a giant magnifying glass attached that attracts the sun 5 fold. Inside they are comfortable and good in the gym, hence the 3 star rating.