Racing Team Dog Harness. This red and black racing inspired dog harness is an ideal accessory for your little speed racer. Complete with checkered flags on the chest and ‘racing team’ on the back. Features an adjustable chest strap with durable clip and D-ring leash attachment. Sizing: XS: Chest fits 8 to 10in. S: Chest fits 10 to 13in. M: Chest fits 14 to 16in. L: Chest fits 16 to 18in.