The asics gel cumulus 21 ls mens running shoes are part of the lite show range, designed specifically for winter and low light running with high levels of reflectivity to help keep you visible. These running shoes feature asicsaposapos dependable gel cushioning positioned in the front and rear of the shoe for all round impact absorption. Mens running shoes lace up eva sockliner energised cushioning flytefoam™ lyte technology flytefoam™ propel technology gel™ technology, forefoot and rear aharplus™ sponge rubber outsole lite show™ technology, reflective details i.g.s™ impact guidance system technology synthetic textile upper, textile inner, synthetic sole for product specific queries please contact the asics customer service hub tel 44 1925599784 email consumer ukasics.com