Pearl Izumi Men's EM Trail M2 Trail Running Shoe 54% Textile/46% Synthetic Imported Rubber sole Mesh running shoe with seamless upper featuring logo patch on tongue, lace-up vamp, and pull-loop at heel Dynamic offset: 4 mm at initial contact to 7.5 mm at mid-stance Bi-lateral mid-foot posts to keep foot on top of midsole platform in technical terrain Biomechanically-tuned dynamic E:MOTION midsole for a mid-foot pronation running gait Esso forefoot rock plate to protect from stone bruising and rock push-through Aggressive, multi-directional carbon rubber outsole offers traction and abrasion resistance