Brooks Glycerin 22 – Experience supreme comfort and support. Enjoy industry-leading support with the unique DNA Tuned design of the Glycerin 22. This nitrogen-infused technology delivers plush landings and responsive energy return with every stride—whether you're training or racing. The next-generation DNA Tuned foam features dual-size cell technology: larger cells in the heel ensure ultra-soft landings, while smaller cells in the forefoot help you push off dynamically into your next step. A foot-hugging fit for total confidence The re-engineered upper with dual jacquard knit offers a flexible and comfortable fit that wraps around your foot. The shoe’s wide base stabilizes your foot while promoting smooth transitions from heel to toe.