I purchased this shirt for running.  The long sleeve will keep my arms from getting too tanned.  This shirt is very comfortable and the feel is great.  The material seems to transfer the sweat away from the body similar to Nike dry-fit shirts.  The price is much more affordable compared to other, more expensive brands. I am waiting for some lighter colors to be available because running in the summertime with a dark blue or black shirt is a little too warm for me.