This is indeed a thinner fleece material than a typical heavy winter sweatshirt. And that's the precise reason these shirts are so nice! They are a lightweight fleece, perfect to wear as a stand-alone shirt when the temps are in the 40s or 50s. The fabric is really smooth and soft to the touch. The fit is, as advertised, classic--not loose, but also not too slim. Sleeves seem the right length for me, I'm at 33 inches. And the fleece feels great against the skin. I bought the charcoal gray, which is nicely dressy for a sweatshirt, liked it so much I just bought another charcoal gray pus the soft olive green. Another Eddie Bauer winner, an alternative to my thermal shirts.