The present invention is directed to golf balls having a diameter of greater than 1.68 inches and including at least one layer formed from an HNP composition.
1. A two-piece golf ball having a diameter of 1.70 inches or greater, a weight of from 45 g to 46 g, an MOI of 86 g·cm 2 or greater, and consisting essentially of a center and a cover layer, wherein the center has a diameter of 1.60 inches or greater, a positive hardness gradient of at least 3 Shore C units, and is formed from a highly neutralized polymer composition.
2. The golf ball of claim 1 , wherein the diameter of the golf ball is 1.75 inches or greater.
3. The golf ball of claim 1 , wherein the diameter of the golf ball is 1.80 inches or greater.
4. The golf ball of claim 1 , wherein the golf ball has an MOI of 90 g·cm 2 or greater.