Yellow Dog Design, Inc., is a dye sublimation/heat transfer printing company specializing in the design and manufacture of a unique line of pet collars and leads, as well as Equine fashions, in their local NC facility. This line is passionate about the product as evidenced by the 5 awesome canines that come to work with us everyday, 4 Labs, and 1 Dachshund. They are our models and some of the best product testers in the industry. Our martingale collars are made in the U.S.A. of 100% vibrant color-fast polyester with durable hardware and a metal D-ring. Best of all they are washable!. X-Small: 3/8" Width x 10" Neck. Patterns: Christmas Cheer.- SKU: YLDG1532