The back is made of brushed material, so you can stay warm all day even when you're outside with just this one piece. It doesn't look like fleece warm pants. It stretches very well and is comfortable to wear, so I bought four pairs. I am selling these items, which are brand new and have been stored. *These will be compressed for shipping. Size: 4XL (5L) or larger Color: Black系 (Black-based) Pattern/Design: Solid Stains, tears, odors, etc.: None Size: 4XL (5L) or larger