Belt Length Chart: Medium - (29" - 34"), Large - (35" - 40") * Spindrift"s innovative Daisy Runner System provides a comfortable method for hands free control of your dog while running, walking, and adventuring beyond * Easy to attach belt has extra strong quick connect loops on each side to make attaching your favorite leash both easy and versatile * Attached to the belt is Spindrift"s famous Max Walker stretchable dog lead which provides superior comfort and protection for your four legged friend * Belt is lined with neoprene for your comfort and piped with highly reflective 3M tubing for maximum visibility