Purchased in Hawaii this spring. Made of stretchy fabric. Can be worn in fall and winter by layering with a long-sleeved top. The listed size is S, but it was too big for me, so I think it would be good for someone who wears a size M. Size S Chest width 47, Length 69 Color: Blue系 (Blue-based) Pattern/Design: Check Season: All Season No stains, tears, or odors.