Rockers "Cayenne" Shoe features the DBL difference, which is formulated to have superior cushioning and resilience. This makes the shoe softer and more supportive. DBL is a brilliant white without using the whitening chemicals that weaken the outsole and make it more brittle. DBL on the outsole, Super-soft premium leather, No fading or streaking for the life of the shoe, Resistance to stains and chipping, Increased softness and durability.