A 5k to marathon race shoe with cushioning for fast long training this $90 USD shoe featured lightweight breathable spacer mesh, minimal synthetic mid foot support system, internal Rhenoflex counter for great heel fit and support, full length lightweight Phylon midsole, low profile Zoom Air cushioning in heel, TPU shank piece to cradle mid foot and arch, minimal medial post for stability throughout the race, BRS 1000 heel strike pad, Forefoot Duration lateral zone with TPU medial power pad for toe off and transition. With all that said, truth be told just looking at this shoe its tough to grasp just how tech it really was for the time, but a classic runner for sure.