What Cleveland Say:
The Smart Sole 4 makes the short game easier. Featuring an extra wide sole and improved Feel Balancing Technology, the Smart Sole 4 delivers maximum forgiveness and easier bunker play for those needing more short game assistance.

Features:

• Enhanced Three-Tiered Sole - An extra wide three-tiered sole, with added leading edge bounce, provides maximum forgiveness from the fairway, rough or out of the bunker.
• Improved Feel Balancing Technology - The redistribution of weight from the hosel allows the center of gravity to be moved closer to the center of the clubface for better feel and more consistency on all shots.

• Aggressive Milled Grooves  - New aggressive milled grooves generate better spin performance from any conditions.