Product DetailsHigh performance with no equal, ASICS introduces the new GEL-Quantum 360™ – engineered for a high octane ride with 360 degrees of GEL® Cushioning technology! Designed for the athlete demanding the ultimate in performance and endurance, with unmatched GEL® cushioning that is built to outlast the competition. The discrete construction of the full length Trusstic System® delivers support and a spring-loaded ride to power through each workout. The advanced FluidFit® upper is nearly seamless, constructed to provide strategic support so the only thing runners will notice is how great their feet feel while running in the GEL-Quantum 360™. Weight: 9.9 oz. Heel Height: 21mm. Forefoot Height: 11mm.