Same excellent quality and the exact cut and style of the Puppia, the ipuppyone soft light harness is 100% polyester air-mesh and features a comfortable neck and adjustable chest belt. Two LED flashing lights (one blue and one red) operate by an included watch battery. This harness is great for helping keep your pet visible on evening walks. We estimate that our little Madison can be seen up to 100 yards. We recommend spot cleaning. Do not machine wash and dry this harness.