Reebok Women's One Guide 3.0 Running Shoe 100% Synthetic and Fabric Synthetic sole Lighweight running shoe with breathable mesh upper featuring synthetic overlays and TPU heel counter for superior rearfoot stability Adaptive NanoWeave straps provides additional mid foot control for a locked-in fit Underfoot pistons provide superior cushioning and a responsive ride Midstance Zone designed to provide lightweight guidance for the mild to moderate pronator