Hidden amongst the Reebok Pump lineup was this fascinating and somewhat forgotten technology called Energaire —
From what I’m aware, Energaire was a 3rd-party technology used by Reebok on the 1991 Pump Walking (below), and the more sober Comfort I (bottom). The technology was also used on shoes by the Spalding company.
A number of Patents define this technology as using fluids or air to transmit between the 2 reservoirs at either end – for the purpose of “encouraging a Walkers’ consistent foot-strike”. The Pump Walking itself apparently has 3 technologies incorporated – Pump, Energaire, and Hexalite (supposedly in the heel) making it a shoe with more tech than any other in memory. If you have any more information, please comment below! ~BokOne