Footwear providing enhanced protection against extreme landing impacts includes a sole having an elastomeric mid-sole with elastomeric pads combined in a heel recess thereof such that the pads act in series with each other and in parallel with the mid-sole during conjoint compression thereof. At least...http://www.google.co.uk/patents/US20070294917?utm_source=gb-gplus-sharePatent US20070294917 - Footwear with enhanced impact protection
