Details Your daily walk just got more sustainable. Made of durable recycled polyester and aluminum hardware to last you years of getting outside with your favorite pal. 100% recycled polyester webbing with aluminum hardware Adjustable design with side release clips Small fits chest girth 20"-28.5". Large fits chest girth 24" -33". Aurora, a Chow Chow weighing 55 lbs, is wearing a size L in Foxglove; Wylie, an Australian Cattle Dog weighing 38 lbs, is wearing a size S in Marigold Spot clean Made responsibly in Vietnam