This is a pre-made item and is only available in this size and fabric choice.
A matching doublet, jerkin, or cotehardie and pants was the original man's suit of clothes. When you you really want to look great get the matching pants at the same time. The brocades fabrics are constantly changing and you may not be able to get the same pattern later.
If ordering a jacket and pants in brocade, call to verify that we have enough of the brocade fabric is still available before ordering.
See Brocade page for examples of the currently available fabrics.