This is a GU sweat cardigan. The gold buttons make it less casual, and the simple design is easy to mix and match. I washed it once with the intention of wearing it, but it's unused. - Color: Navy - Design: Button-up cardigan - Tag: Solid Thank you for looking. Color...Navy系 (Navy-based) Material...80% cotton, 20% polyester Season...Autumn/Winter Stains, tears, odors, etc....None Size...M Shoulder width: 50cm Body width: 51cm Sleeve length: 52cm Length: 50cm