Run distraction-free in the Brooks Glycerin 23, with tuned cushion for plush landings and electric toe-offs. Featuring an extra 2mm of DNA TUNED, the next generation of nitrogen-infused foaming created with a tuned dual-cell technique. The heel features large cells for plush landings, while the forefoot features small cells for responsive toe-offs. Brooks' cutting-edge foam reduces added layers and processes for a seamlessly tuned experience. A modern and streamlined upper features a new engineered knit, which provides enhanced comfort and breathability in a fit that’s soft and accommodating. The wide platform plus the tuned heel and forefoot provide a smooth and steady transition from heel-to-toe.