Our Zeta Collars are made of poly vinyl-coated webbing, so they have the softness and feel of leather and the durability of nylon. The poly vinyl coating makes these collars water repellent, soil, odor & rot resistant, easy to clean and fade resistant. Zeta Collars are an economical alternative to leather collars and will last and look great for years! 16" Collar fits neck size 10-14" and 18" Collar fits neck size 12-16". 3/4" width, select length and color.