Patent ID: 8012044

Claim:
A golf ball comprising: a core; an inner cover layer disposed on the core and having a thickness ranging from 0.030 inch to 0.070 inch, the inner cover layer comprising a blend of ionomers, the blend of ionomers comprising a first ionomer with an acid content by weight of 16% or less and 10% to 100% neutralization of the first ionomer by sodium metal ions, and a second ionomer with an acid content by weight of 18% or more and 10% to 100% neutralization of the second ionomer by zinc metal ions; and an outer cover layer disposed on the inner cover layer, the outer cover layer having a Shore D hardness of no more than 55 as measured on the curved surface thereof and comprising a thermoplastic polyurethane and having a thickness ranging from 0.030 inch to 0.060 inch; wherein the golf ball exhibits a PGA compression of 100 or less and a coefficient of restitution of at least 0.770.