RUBBER COMPOSITION AND PNEUMATIC TIRE

Disclosed are a pneumatic tire having excellent crack resistance and a rubber composition capable of obtaining the tire, containing a rubber component containing a polymer having at least one polar functional group selected from the group consisting of a nitrile group and a pyridyl group; a metal compound containing a divalent metal ion in an amount of 7 to 25 parts by mass relative to 100 parts by mass of the rubber component; a filler; and sulfur.