Pattern Design: Solid Color: Blue Season: Autumn Season: Winter, Autumn Type: Long-sleeved shirt Familiar Size 110 Navy vest White long-sleeved polo shirt I wore these when I went to class. How about them for this time of year? As shown in the fourth image, there is blackening on the inside of the sleeves, but it is not visible from the outside as shown in the fifth image. I think you can still wear them. For those who understand used items.