Smart Sole Our widest wedge sole has been engineered to prevent excess digging in turf and sand, promoting solid contact and consistent club head speed from every lie around the green * More Consistent Chips With a design that promotes proper short-game technique, Smart Sole C encourages crisper, more consistent greenside chips with easier control of launch and distance * Easier Bunker Escapes Smart Sole S features an optimal loft and shape to promote more consistent contact and easier launch out of bunkers