Non-stop dogwear Adjustable Canicross Belt for Beginners and Professionals (One Size Fits Most) Uses - canicross, jogging, hands free walking, trekking and all active dog adventures Ability Level Required - Beginner or Advanced. Everyone should protect their lower backs when running with dogs. Save Your Lower Back - The design of this belt protects your lower back by transferring your dog's power into your legs. Race Approved - Manufactured to surpass all international race standards. Adjustable - numerous adjustments help you fit the belt perfectly to your body and to how your dog pulls.