Just bought this shirt in men's large. Our unit going on trek this summer and instead of paying a lot at a historical website I thought I would try DB since the price was right. Unfortunately, the quality is just not there. It is paper thin and the sizing is not even close. I bought a men's large and it would be pushing it to call it a medium. My suggestion is to buy at least 2 sizes larger than you wear, and maybe 3 sizes to account for it being 100% cotton. It was worth a try, but not worth buying from DB.