I ordered a size M - I am 5'7",145 lbs, 34D. This fit ok - a tad form-fitting, but not bad. I love the white bands at the sleeves and neckline, and the saying, as I love to go camping! However, after just one wash on Permanent Press in cold water, the graphic is starting to peel. So far, it just makes it look well-worn, but I don't know how long it will be before the graphic is all gone. Then it's just a plain t-shirt.See full review