Found My Animal Collar The collar measres as follows: Xsmall 8.5-10.5" and under 5 lbs, Small 10-13" and 5-12 lbs, Medium 12.5-15" and 12-30 lbs, Large 15-18" and 30-40 lbs, Xlarge 19-22.5" and over 40 lbs The Collars are made with 100% cotton webbing and top stitched with industrial thread Leather ends on the collar are stylish and durable Each collar comes with "Found" tag to serve as a reminder of the company's giving back Designed and made in the USA, Brooklyn to be exact