**The nylon webbing can withstand 2100 lbs of pulling, so even the strongest of dogs won't be able to break through our collars**Our collars are comfortable and adjustable for growing dogs**You have an option of our signature curved side release buckle in metal or a plastic buckle to contour to your pet's neck**Nickel D-ring won't rust and is perfect for attaching your dog's tags**Matching bow ties and leashes are also available in 5/8 in., 3/4 in., and 1 in. widths**Collars are machine washableCollar Sizing:XS fits necks 5-9"S fits necks 9-13"M fits necks 13-17"L fits necks 17-21"XL fits necks 21"-25"Sophisticated Pup collars are handmade in Chicago, IL and are available in select designer pet boutiques across the country. Inquire today to have our products available in your store. Our studio is located in the Wicker Park neighborhood of Chicago. You are welcome to shop our collection at our showroom at Andersonville Galleria, 5247 N. Clark St. in Chicago, or you can find us at many events and shows throughout the midwest.