This is a single-ply Comfort clergy shirt collar from R.J. Toomey. The collar is made of flexible plastic, so it is especially durable. You can be sure that this clergy collar will last for a long time. The collar is easy to keep clean; just wash it with soap and water. This collar is designed to be worn with shirtfronts and collarette-style clergy shirts. The clergy collar fastens with a collar button in the back. This Comfort clergy collar is made in the USA by R.J. Toomey, a trusted company with over 70 years of experience in providing quality clergy apparel and accessories. This clergy collar fits a 15 inch neck size. The #2 collar is 1-1/4 inches high. Collar buttons are sold separately.