Running doesn’t have to hurt your feet. Or knees. Or hips. The Glycerin GTS 20 features our GuideRails® support technology that keeps excess movement in check so you stay in your ideal stride. Plus, supremely soft DNA LOFT v3 ensures these super cushioned running shoes deliver total comfort. SUSTAINABILITY: 32.4 % Recycled materials in the upper. 4.66 Plastic bottles diverted from landfill. FEATURES: Supreme softness. Improved fit. Smart support. New lightweight upper.