Verified vegan construction. Your search for high-performance running shoes has come to an end with the Newton Running Gravity 13 shoes. This pair has a gender-tuned adaptive mesh boosted with enhanced cushioning and responsiveness. Optimized with ART technology for better performance and versatility, these lace-up shoes are one of a kind. Newtonium-T (TPEE) Foam Midsole provides superior impact absorption and rebound making the shoe incredibly responsive. Newtonium-H (Hytrel) Foam Strobel provides extra cushioning on top of the midsole. Bio Based Pebax Full Foot Plate. High Performance Forefoot Heel ART. Gender Tuned Adaptive Fit Mesh. Rubber outsole. Measurements: Heel Height: 10 11 in Weight: 8.2 oz Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size. Color: yellow