R.M.Williams uses the term XB in its sizing rather than XL. This simply means it is a wider fit than XL, also known as a ‘relaxed' fit, so the garments will feel looser than normal XL sizes. Chest sizes range from approximately 142cm to 187cm. Their jeans, shorts and pants come in waist sizes from 42" to 56" and are also made in a relaxed fit.
