Women's Glycerin Flex SIZE:9 a supercritical nitrogen-injected foam with

a supercritical nitrogen-injected foam with added bio-EVA to increase responsiveness and reduce weight

tubular running belt offers a zippered pocket for added protection

it delivers a soft

Drop - 5 mm

Women's Glycerin Flex SIZE:9 a supercritical nitrogen-injected foam withSoft cushioning and flexible support come together in the Brooks Glycerin Flex to create a smooth, adaptive ride. DNA Tuned technology uses large heel cells for plush impact absorption and small forefoot cells for a lively toe off. This tuned nitrogen infused foam helps reduce added layers, giving you cushioning that feels consistent and streamlined. The engineered flat knit upper enhances comfort with breathable flexibility that moves naturally with