Uniqlo fleece. My son wore this camping and during outdoor activities. I think I bought a men's S size because he wanted to layer underneath... (Please check the product number to confirm). There are wood chips or small pieces of debris stuck in the sleeves and other places. There's also some flattening of the fluffy material. It seems like it was light and warm, and he liked it. I'd love to give this to someone who enjoys camping or outdoor activities! It will be shipped compressed via Yu-Packet Post.