Two-Ply Latigo Dog Harness with Spikes and Studs model 174DSK (Black , XL: Neck strap adjusts 22 in.-28 in. Chest 38 in.) This harness is also available without studs or with studs only! Collars and harnesses made by this company are measured to the end of the strap, not to the last hole. Please allow an additional 2-3 inches when choosing a size.