A high-performance javelin shoe built for throwers of all levels.ISOFIT - Revolutionary fit system that morphs to the foot for a custom feel.Lace-up and adjustable hook-and-loop strap closures.Padded tongue and collar.Breathable fabric lining offers a great in-shoe feel.Removable foam insole.Full-length compression-molded EVA midsole provides lightweight, durable cushioning.Full-length spike plate boasts 11 removable metal spikes that deliver aggressive traction on track and grass surfaces.