The Brooks Cascadia 8 running shoe is engineered to adapt to the surface and your foot. Moisture-managing, breathable Element mesh upper with microfiber and synthetic overlay materials. Suede geometric pattern wraps the foot for a close fit. Forefoot DNA is designed for flexibility to ensure a smooth transition from heel strike to toe off. Caterpillar Crash Pad on the lateral side smoothes that heel-to-toe transition even more. BioMoGo offers resilient cushioning and extends the full length of the midsole. Heel Pivot System comprises of independent medial/laterial posts that are shaped to reduce the destabilizing effect of trail irregularities. Forefoot Pivot System is located under the lateral side of the metatarsals and is shaped to adapt to varied terrain surfaces to help keep the shoe from toppling over. HPR Green outsole offers increased traction and skid-resistance. Wt. 11.9 oz.