Go further than you ever thought possible with the men's GEL-CUMULUS 21 LS performance road running shoe by ASICS. This premium shoe offers supreme bounce and energy thanks to FLYTEFOAM Propel and FLYTEFOAM Lyte technology, while the combination of rear and forefoot GEL technology offers unbeatable levels of shock absorption and cushioning. The shoe has outstanding support as you move, with I.G.S (Impact Guidance System) technology ensuring your feet stay in their natural gait. Extra stability is provided by the internal heel counter and GUIDANCE LINE technology, which enhances the efficiency of your stride, giving you the energy you need to take on those extra miles. /p> If you're running long distances, you need a shoe that's built to last. We've added our highly resistant AHARPLUS compound at high impact areas of the outsole to reduce the effects of abrasion and long-term wear. The GEL-CUMULUS 21 LS shoe also features an engineered jacquard mesh for breathability that keeps your feet feeling fresher for longer. Meanwhile, the LITE-SHOW technology reflective detailing means you'll always capture attention, even when the light begins to fade. It all adds up to a running shoe you can count on as you look to boost your performance and reach new distances.