The Pet Life 'Escapade' Outdoor Series 2-in-1 Dog Leash and Harness is composed of Extremely Durable Nylon and Tetoron blended Fibers that is specially engineered for High-Tensile strength that repels sweat and is further breathable. This Unique Sporty Dog Leash features an adjustable secondary loop along the leash that gives the user the option for an up-close and personal training experience or a standard leash. Engineered and equipped with Metal Alloy engraved Quick-Connecting buckles and a unique and sporty swivel leash connector with a screw top mechanism that completely secures the leash and collar and provides a Multi-Directional pulling or tugging experience. Available in Multiple Sizes and Colors. Sizing Guide (Inches) Collar and leash dimensions: Small: Leash Length: 48" Width: 0.59" Chest Girth: 13.77" - 19.68" Medium: Leash Length: 48" Width: 0.78" Chest Girth: 19.68" - 27.55" Large: Leash Length: 48" Width: 0.98" Chest Girth: 25.6" - 35.43"