Plush cushioning, meet reliable support. For the Glycerin GTS 21 women's running shoe, we added 2mm more super soft DNA LOFT v3 cushioning for extra plushness, while our innovative GuideRails support system keeps you comfortably in stride. Plus an updated, streamlined upper delivers breathability.Sustainability61.1 % - Recycled materials in the upper3.75 Plastic bottles diverted from landfillsSupreme softnessComfortable fitSupportRoad runningFeaturesSupreme softnessImproved fitWhole-body supportMidsole drop 10mmWeight 9.2oz / 260.8gSupport Level - Support