Get moving and get moving fast with the premium DYNAFLYTE 4 men's performance running shoe from ASICS, specially designed for road running. This lightweight shoe sports FLYTEFOAM Lyte technology to put a spring in your step, along with rearfoot GEL technology to ensure shock absorption and a softer, more luxurious feeling underfoot. The plush shoe also benefits from our I.G.S (Impact Guidance System) technology which ensures you get a cleaner stride, strategically enhancing your natural gait as you push for that new personal best. The DYNAFLYTE 4 model is a durable running shoe for neutral, fast-paced athletes looking to go the distance and push boundaries. FLYTEFOAM LYTE TECHNOLOGY ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers. JACQUARD MESH UPPER Engineered Jacquard mesh means feet stay cool and dry, while the shoe's reflectivity ensures you'll always stand out. 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. Find the Right Fit GEL-NIMBUS 21 DYNAFLYTE 4 GEL-QUANTUM INFINITY DS-TRAINER 24 GEL-KAYANO 26 Pronation UNDERPRONATION (Supination) UNDER, NEUTRAL NEUTRAL OVER, NEUTRAL OVERPRONATION How Your Foot Contacts the Ground The outer side of the heel hits the ground at an increased angle with little or no normal pronation, causing a large transmission of shock through the lower leg. The foot lands on outside of the heel, then rolls inward (pronates) to absorb shock and support body weight. The foot lands on outside of heel, then rolls inward (pronates) excessively, transferring weight to inner edge instead of ball of the foot. Push Off The pressure is on smaller toes on outside of foot. There is even distribution from the front of the foot. Big toe and second toe do majority of the work Foot Type High arches Normal arches Low arches