~ The inside is fleece-y and very soft, though it does pill slightly in the dryer.. ~ Washes well, but shrank slightly vertically ~ The arm cuffs fit snugly while not constricting my wrists. The sleeves are maybe 1'' too long, which is nice because they can be pulled down to keep my hands warm. ~ I would call this a medium-weight sweatshirt. It's light enough to wear inside without sweating, and I would also wear it outside down to say 45F.