- Color: Navy - Size: L - Design: V-neck - Style: Long sleeve Thank you for viewing. This is a thin, navy blue sweater made of 100% cotton, purchased from MUJI. I used to wear it as an inner layer under a jacket. I wore it for one season, so there's a little wear and tear, but it's a sturdy MUJI product, so I think it can still be worn. Shoulder width: 49cm Body width: 51cm Sleeve length: 70cm Length: 74cm