These are true to size, extremely light weight yet keep order in the house, so to speak. They're exactly what I've been looking for and I've tried a lot of 'em (Calvin Klein, modal Fruit of the Loom, Adidas, other David Archy stuff, Buffalo brand, etc., etc.). These are the best. There's none of that stink that Dry Fit and the other variations of wicking wear tend to have, either. I've bought two 4-packs now and will buy more to replace the whole drawer of other stuff I've accumulated over the years. And a great price, too!