An appealing dog collar that promotes a worthwhile cause! Casual Canine® Adopt Dog Collars are made of durable red nylon with a white ribbon overlay that has our exclusive "Adopt" print. Showcase a worthwhile cause every time you take a dog for a walk. Red nylon dog collars feature a white ribbon overlay with our new "adopt" print. Collars have plastic buckles and nickel-plated D-rings.