Amish Handmade Checkered Dog Collar With Super Strong, Comfortable Beta Synthetic Leather Made up With Super Strong, Comfortable Beta Synthetic Leather That Won't Fade. COLORFUL CHECKERED BETA SYNTHETIC Leather. THREE SIZES TO FIT ALL DOGS - Choose from Medium size 15 to 20, Large 19 to 24, and Extra Large 23 to 28. MACHINE WASHABLE these colors don't fade. It is soft and pliable, not stiff at all.