Golf ball

A golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body,

• wherein an outermost layer of the paint film located at the outermost layer of the golf ball contains a base resin and a porous filler,
• the base resin contains a polyurethane obtained by a reaction between
• (A) a polyisocyanate composition containing an adduct-modified product of a diisocyanate and/or an isocyanurate-modified product of a diisocyanate as a polyisocyanate component, and
• (B) a polyol composition containing a urethane polyol having a weight average molecular weight of from 5000 to 20000 as a polyol component,
• wherein the urethane polyol has a polyether diol as a constituent component,
• the porous filler contains SiO2 in an amount of 50 mass % or more as a constituent component, and has a bulk density in a range of from 0.2 g/cm3 to 1.0 g/cm3,
• an amount of the porous filler is 3 parts by mass or more and 200 parts by mass or less with respect to 100 parts by mass of the base resin, and
• a loss tangent (tan δ) of the outermost layer of the paint film measured with a dynamic viscoelasticity measuring apparatus under following conditions has a peak temperature of from −40° C. to 40° C.:
• <measurement conditions>
• measuring mode:
• tensile mode
• measuring temperature:
• −100° C. to 150° C.
• temperature increasing rate:
• 4° C./min
• oscillation frequency:
• 10 Hz
• measuring strain:
• 0.1%.