Honestly I was a little reluctant to order Ranger Uniform Sweater as I was concerned that it might be too heavy and the wool too hot. Was I ever wrong. This merino wool is unbelievably soft on the skin and so much so that there is no scratchiness even wearing a short sleeve tee. This sweater is definitely good for three seasons. I layer over a short sleeve or long sleeve tee or lighter weight cotton button up shirt. I am 6’, 210 and the XL is a perfect fit but if you intend to wear heavier layers you may want to size up. The size guide for each item seems to work well for me but if you have any size concern just call Engle for expert sizing advice. I’m so impressed with this cardigan that I ordered another In navy! All bases covered.