Use the Mondo Medical Medium Dog Harness Dog Service Vest with “DO NOT PET” patches to alert bystanders that your emotional support animal is working and should not be distracted. Bright red pet harness with reflective materials allows you to dress your dog for work and give them the credit they deserve. Premium materials and reinforced stitching provide high toughness to prevent tears even when your dog is running, shaking, and playing, while steel d-rings allow you to attach a leash or lead quickly and helps prevent pulling to make walks easier. Hook and loop patches can be replaced so you can mark this harness as an emotional support dog vest, therapy dog harness, guide dog vest, training harness, or as an ESA dog vest. Adjustable straps fit most 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.