Diadora Speed Blushield Fly 3+ Mens Tennis Shoes CatSub_2ATM JOGGER There are perforation zones that There are perforation zones that provide better breathability for added comfort and the internal infinity drawcord allows runners to get the desired fit Made from DriLayer Threshold fabric The Speed Blueshield Fly 3 features the signature Blueshield technology that combines cushion and response and the Ortholite insole and the sock construction upper in Suprelltech D skin provides breathability and comfort The light EVA midsole and CCB technology provide a medial stabilizer to control torsional stability near the arch and the Duratech 5000 rubber outsole enhances the durability and optimizes the performance of this shoe on hard courts and clay courts