The BroadBand Dog Harness: Think BIG. Finally a dog harness designed to fit our BIG DOG friends! Made of the same satin-finish, softer, thicker, heavier Nylon as our Sportso Doggo dog harness . . . yet with webbing supersized 50% to match your large dog’s body structure. It also has a metal front slider and is made from 5700 pound test material for extra strength. Fits dogs from 80-250 pounds/36-115 Kg. Includes 3M Scotchlite Reflective Material™.