(under subclass 34) Products provided with means for absorbing, at least partially, the shock generated at the heel area by walking, so that none or only a diminished part of such shock is transmitted to the heel of the wearer.
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3, for resilient means in the rear portions of foot coverings for circulating air in the foot coverings for ventilation.
59+, for anti-slipping devices, which may include resilient means, for the rear portions of foot coverings.