Thank you for viewing. I personally don't think it's that noticeable, but there is some yellowing on the collar. It's made of polyester and cotton. The actual size is: length 63cm, sleeve length 18cm, shoulder width 37cm, body width 47cm. It's a size M. Please understand that there may be some errors as it is measured by an amateur. Basically, most of the items on sale are used, so please judge the condition from the images and only purchase if you fully understand that they are used items. Please understand that we cannot ship on Saturdays, Sundays, and holidays.