A removable ball of the foot insert for placement into footwear at a
position in correspondence with a forefoot portion of the footwear
includes a substantially planar member made from a viscoelastic gel, the
planar member including a lower surface and an upper surface, and a
plurality of parallel, spaced apart, sinusoidally shaped spring walls
formed from a viscoelastic gel and extending from the lower surface of
the planar member at a predetermined area corresponding to a ball of the
foot when the insert is inserted into the footwear, for separating bones
of second and third metatarsals of the foot, the spring walls having
heights that generally decrease outwardly from a center of the
predetermined area, and the viscoelastic gel of the planar member having
a hardness greater than a hardness of the viscoelastic gel of the spring
walls.