LOVE this tee. I am usually a M-L, with a little post-babies pooch, so I don't like clingy clothing. Ordered the L, and it's PERFECT. I'm 5'7"+, between 155-165lbs. The material is breathable. I've washed it in cool water, and while I was planning to air-dry it, a helpful kiddo put the laundry through the dryer, normal heat. The shirt did not shrink at all- YAY! I came back today to order three more of these, in different colors. For the price, comfort, and fit, you cannot beat this shirt.