The dog jogging belt is ideal for Canicross, a dog sport that is becoming increasingly popular in the UK. At Canicross, a runner and his dog are connected via a long elastic leash attached to the runners waist belt and dog harness. On a cross-country run, the runner is pulled along by his dog and the belt gives him the freedom to use both arms. When you run with your dog, you can travel longer distances than you would do alone at a higher speed. This effective running training engages different muscle groups for you and provides an alternative way to have fun with your dog outdoors. Size:Waist Adjustable from 63-110cm Bag Size: 6 x 11 cm (W x H).