The Beirui No Pull Escape Proof Dog Harness for Small Medium Large Dogs is a high-quality nylon fabric double-lined with neoprene for maximum durability and comfort. The harness features two sets of straps that provide ample support for your dog while walking. The front leash attachment steers your dog to your side to reduce or eliminate leash pulling. The harness is available in four sizes to accommodate small, medium, or large dogs.