Doggie Design American River Ultra Choke-Free Dog Harness - Cobalt Blue Trachea Safe - Choke Free Patented Design Pulls from the Chest ONLY Patented Conforming Shape Fit Seam Technology - Causes harness to conform to Dogs Chest curve. Patented Closure Slide Adjustability - (Other copy-cat harnesses have little or no size adjustment) Our 3 Inch Webbing allows for 3 Inches of Size Adjustment Double D-Ring Adds Strength Same Color trim binding as the mesh