The brand new FootJoy Pro SL is the players spikeless shoe that combines a soft and comfortable waterproof upper with a midsole/outsole unit that features three distinct layers for underfoot comfort, perimeter stability and performance spikeless traction. This all comes courtesy of a proprietary polymer outsole material called Fine-Tuned Foam (FTF), which is 10% lighter than conventional EVA foams and provides enhanced cushioning and shock absorption for added comfort.