Brooks Glycerin GTS 21 in size 10. 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. Sustainability. 61.1 % Recycled materials in the upper 3.75. Plastic bottles diverted from landfills. Best For… Comfortable fit Support Road running Features Supreme softness Improved fit Whole-body support In Excellent Like New Condition with minor spots and minor wear see pictures.