A footwear cushioning system including an insole platform and an insert that cooperate with one another. The insole platform includes a recess defined in the heel and/or forefoot area. The insert includes a footbed and heel and/or forefoot cushion extending from the footbed. The cushions interfit with...http://www.google.co.uk/patents/US20030150131?utm_source=gb-gplus-sharePatent US20030150131 - Cushioning system for footwear and related method of manufacture
