Clear public identification for allergen detection dogs (peanut, tree nut, gluten, shellfish and more). Includes a removable "Allergy Alert" rectangle patch and a round "Service Dog – Access Required" patch, and the chest pocket can hold an emergency or allergy action card.

• Built-in clear ID pocket: a clear vinyl window on the chest displays an ID, emergency contact or medical information card, so it's visible without digging through a bag.

• Includes 10 information cards to help you explain your dog's role calmly when questions come up in stores, restaurants, hotels and airports.

• Removable hook-and-loop patches: bold "Allergy Alert" patches clearly identify your working dog from every side and can be swapped or removed.

• Reinforced top control handle and metal D-ring: pull your dog close in crowds, use it for grounding and stability, and clip your leash securely at the chest.

• Reflective straps and trim for visibility on early-morning and evening walks and in parking lots.

• All-day comfort: waterproof heavy-duty nylon outer with a breathable padded mesh lining, quick-release buckles and adjustable chest and belly straps for a secure, no-slip fit.

SIZE GUIDE (measure the widest part of the rib cage, just behind the front legs):

• Medium: 21.5–28.5" girth

• Large: 27.5–36" girth

• X-Large: 33.5–45" girth

Between sizes? Choose the larger size and tighten the adjustable straps. See the size chart in the photo gallery.

Designed and shipped by All Access Canine, maker of working dog gear since 2017. 100% satisfaction guaranteed.