Give your dog the credit they deserve and dress them for work with the Mondo Medical Medium Dog Harness Dog Service Vest. Equipped with 4 x 1.5-inch (10.2 x 3.8cm) black patches with bright white lettering, these red dog harness vests with reflective stripes wrap around your pet's body and buckle under their chest to clearly identify them as a “SERVICE DOG”. Hook and loop patches can be changed out or replaced so you can mark this jacket as an emotional support dog vest, therapy dog harness, guide dog vest, training harness, or an ESA dog vest. D-ring on the back of the service dog gear vest allows you to attach a leash or lead quickly. Medium size fits most pit bull terriers, boxers, basset hounds, dalmatians, shorthair pointers, and other medium-sized dogs. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.