Run in a NIMBUS that transforms into a reflective shoe once the sun sets. You'll be seen in these men's running shoes and feel safer on the road in a shoe that has 360° reflectivity in low light. And although it's reflective on the outside, it's all about comfort on the inside. Every stride begins with a bouncy push off and ends with a soft, cushioned landing. You're in prime position to train for that marathon, whether you're clocking 7-minute or 12-minute miles. Product features Stand out with 360° reflectivity that comes alive at night Bound off the ground thanks to the bouncy FluidRide midsole Feel comfortable with a snug upper made with stretchy mesh Asics technologies TRUSSTIC SYSTEM®: Reduces the weight of the sole unit while retaining the structural integrity of the shoes. AHAR+: New blown AHAR outsole material. Delivers enhanced cushioning, durability and ride to the foot. CLUTCH COUNTER: Exoskeletal heel counter provides improved support and creates improved heel fitting environment. CALIFORNIA SLIP LASTING: For stability and comfort. Upper is stitched around a canvas or EVA board and directly attached to the midsole. REARFOOT AND FOREFOOT GEL® CUSHIONING SYSTEM: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle. 3M REFLECTIVE: Reflective material produced by 3M company, for night safety. SOLYTE® MIDSOLE MATERIAL: A lighter weight midsole compound than ASICS' standard EVA and SpEVA®. Also features enhanced cushioning and durability. GUIDANCE LINE®: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. FLUIDRIDE: The latest evolution in ASICS midsole technology. FluidRide provides the ultimate in bounce back and cushioning characterics while being lightweight.Asics