The Noon collar is a fully adjustable dog collar, super soft on the fur and is made from durable polyester.The buckle has a 4-point locking system for added safety. 

Small - Width 0.6 in / Circumference12.2 - 17 in.
Medium - Width 0.8 in / Circumference 14.5 - 20.8 in.
Large - Width 1 in / Circumference 27.5 in