Coastal Pet Circle T Nickel Buckle Latigo Leather Round Dog Collar, Handcrafted Circle T Latigo Leather Round Dog Collar, brown. Width: 1". Adjustable sizing to fit necks up to 22.5". With age, this leather dog collar will become more supple and comfortable to use in any weather while maintaining its rich, natural coloring and beauty. Strong and extremely durable, this leather round collar is perfect for a dog with long hair or sensitive skin. Great alternative to nylon. Handcrafted. Ideal for everyday use.