Rubber sole Women's Asics, Gel Kayano 25 Running Sneakers Wide Width. This legendary runner is ultra lightweight and cushioned. FluidFit manmade and multidirectional stretchy fabric mesh upper provides an glove like fit Lace up closure for a secure fit Ortholite X40 fabric linings with a SPEVAFOAM 45 cushioned footbed Impact Guidance System Technology with the Dynamic DuoMax Support System for added stability Heel Clutching System Technology with an Exoskeletal heel counter and Rearfoot and Forefoot GEL Technology Cushioning Systems helps absorb shock FluidRide midsole with FlyteFoam Propel Technology and FlyteFoam Lyte Technology for added cushioning and responsiveness with an Asics High Abrasion rubber outsole