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.
Reflectivity: Contains reflective materials designed to enhance visibility during low light hours.
I.G.S® (Impact Guidance System) Technology: ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off.
FlyteFoam® Lyte Technology: ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers.
FlyteFoam® Propel Technology: ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound.
FluidRide® Midsole: ASICS FluidRide® midsole provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability.
Guidance Line® Midsole Technology: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.
SpevaFoam™ 45 Lasting: Employs 45 degree full length SpevaFoam™ 45 lasting material for a soft platform feel and improved comfort.
EVA Sockliner: Removable sockliner that provides cushioning performance.
Rearfoot and Forefoot GEL® Technology Cushioning System: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.
AHAR® Outsole: Acronym for ASICS High Abrasion Rubber. Placed in critical areas of the outsole for exceptional durability.