The adidas XCS 5 Spike is a triple threat, offering distance runners the maximum energy return, lightweight performance, and cushioning they need. Razorweb air mesh upper offers ventilation and support while providing a soft, glove-like fit. Single-layer perforated suede tongue for an added boost of comfort and breathability. Low-profile, full-length EVA midsole lives up to the cushioning needs of middle- to long-distance runners. Full-length rubber TRAXION outsole with spiked heel and strategically placed removable spikes for grip on uneven surfaces. Wt. 5.8 oz.