I can't stop buying this shirt. In Southern California, I can wear it year round, and the fabric keeps me pretty cool even when the sun is hot and the temperature is up. I machine wash it and hang dry it, and in most cases steam it a little with my mini-steamer, though you can get away without it. There is some size variability and the ones I bought most recently seem larger than past ones, even though they're all mediums except my green stripe on white, which for some reason I needed a small. The green stripe is the only see-thru one and I just wear it with a beige cami underneath. Some of my favorite shirts; comfortable and flattering, whether tucked in or worn untucked. I'm 5'3" 132# and mostly wear the medium.