Stay tuned in to the run with the men's Glycerin Flex. A midfoot flex groove, combined with innovative cushioning, delivers a flexible, smooth ride from landing to toe-off. Best for Road running, Everyday runs, Long runs, Workouts on the run or at the gym Cushion Plush Plush Experience luxuriously soft landings with powerful toe-offs. Support Flexible support Flexible support FlexZone™ technology provides midfoot flexibility that helps facilitate the body’s preferred motion path