This sole design was first patented by Terry Koehler in 1994 and has earned a loyal following through multiple iterations. It features a very high bounce on the leading portion of the sole to prevent digging in softer lies and when the club is forward pressed to any degree. But the trailing portion of the sole has what would be considered a very low bounce so that the Edison 2.0 Wedges can handle the tightest of lies. These two angles are always working together to handle any kind of lie and any kind of swing path, so you are never handicapped by the lie you face or the swing path you make.
The “Koehler sole” has been helping tens of thousands of golfers for over 25 years through multiple iterations designed by Terry Koehler for different brands of golf clubs. In the Edison 2.0 Wedges, Terry has refined this design to make it even more forgiving of different turf conditions and to accommodate various swing paths more adeptly.