The Brooks Glycerin Flex blends premium cushioning with natural flexibility for a soft, responsive ride. Its DNA TUNED dual-cell midsole delivers plush landings and energetic toe-offs, while the engineered knit upper provides a snug, breathable fit. With a moderate 6 mm drop and targeted flex grooves, the Glycerin Flex encourages a smooth, fluid stride — perfect for neutral runners seeking comfort and adaptability for daily training and long runs.