This is a long-sleeved T-shirt from MUJI. It has a light gray and dark gray striped pattern. There's no stretching around the neck or cuffs, and I think it can still be worn. The fabric is 100% cotton and thin. The size tag on the back of the neck has been cut off. Please check the images for the name written on the inner tag and where it has been cut off. No fabric softener has been used.