'580 Re-Engineered' Sneaker (Men)Breathability is the key in this versatile sneaker, with strategically placed perforations at the toe and sidewalls and a fully perforated neoprene sock liner. The padded insole is supported by RevLlight technology in the sole that provides premium responsiveness with 30% less weight than comparable materials. Lace up style. Removable padded insole with arch support. Perforated neoprene sock lining. Synthetic upper, lining and sole. By New Balance;