Coastal® Soy Adjustable Dog Collars are natural, soft and eco-friendly with anti-bacterial properties for a natural choice that's strong and durable. Available in 6-8", 8-12", 12-18" and 18-26". It's a Natural Choice! Made of natural fibers, these durable, earth-friendly collars will look great on your dog and show your concern for the planet. The soy fibers have a soft, cashmere feel that your pet will love. The dog collars have anti-bacterial properties to control odors.