RAVE BULLDOG HARNESS combines the hot, hard, old-school harness shape with cutting-edge, new-school lighting options. It’s a touch of b*tch for when you’re bein’ butch, which will make all the dogs go woof. As part of our RAVE LINE, the RAVE BULLDOG HARNESS features a LED IOD lighting system - that’s the technical term for “dim the lights and get the party started." RAVE products light up in 9 color modes - red, blue, green, yellow, purple, pink, white, teal, and orange - in a soft pulsing pattern that mimics the movement of breathing. In addition, the line comes with three animation modes - scrolling, rainbow, and color-shift. This new technology has a longer-lasting battery that’ll keep you lighting up the night for up to eight to ten hours. Last but not least, the RAVE LINE is embedded in a white ribbon setting, which means it can pair with any piece of BREEDWELL gear. User guide and care instructions Sizing: Small/Medium (fits a 35"- 42" chest) Large/XL (fits a 42"- 49" chest)