When daylight hours are in short supply, the Brooks Carbonite Glycerin 19 lets you keep running. Brooks took its popular womenrsquos Glycerin 19 and added reflective elements to help you stay safe during low-light runs. Padded with Brooksrsquo softest cushioning, called DNA Loft, for a supremely soft ride and smooth transitions, the Glycerin is as good for new runners as they work up to more miles as it is for experienced runners getting ready for a marathon. With a lightweight mesh upper and eye-popping accents, the Brooks Carbonite Glycerin 19 gives you peace of mind when you hit the road early in the morning or after the sun goes down.