The invention provides a golf ball comprising a core and a cover of inner and outer layers. The inner cover layer is mainly formed of a diamine complex ionomer resin obtained by reacting a divalent metal ion crosslinked form of an olefin-unsaturated carboxylic acid copolymer with an amine compound. The outer cover layer is mainly formed of an ionomer resin or non-ionomer thermoplastic elastomer. The ball is improved in restitution, control and feel at no sacrifice of durability.
