Reversible, can be worn with either side as the front. If you want a cute look, put the ribbon in the front; for a more subdued look, put the ribbon in the back. It's a size M, but it fits me, who usually wears a size S. No stains. Please understand that this item has been stored at home. It has wrinkles and will be packed and shipped in this condition without ironing. Suitable seasons: Spring, Summer, Autumn Thin fabric. Color: White系 (White-based) Stains, tears, odors, etc.: None Material: Polyester (synthetic fiber)