A Complete Look with matching Harness and Jocks. The Harness is One Size and is adjustable with the automatic barrels on the back and on the Front, so it goes from the largest to the smallest size / from the XL Room). On the front bib there is the Sparta's Harness Logo, the colors of the Snaps are the same color as the Border. The Jocks are adjustable with press studs both on the waist band and on the strip behind the buttocks to adhere to your body as much as you want.