Brooks - Cascadia (Bc Blue Sky/Thorn/Black/Silver) - Women's: A cushioned workhorse for running on rougher trails, these shoes feature adaptable posts to adjust to terrain irregularities for greater stability. Durable synthetic leather/nylon mesh uppers are lightweight and airy for quick-drying and -draining performance. Midsoles feature S-257, a special EVA compound formulated to resist compression and rebound more quickly than standard EVA. Medial and lateral Pivot post system helps outsoles adapt, reduce and stabilize uneven surfaces. Silicone-based HydroFlow system at heel and forefeet feature a fluid-filled center chamber that dampens shock. Forefoot Ballistic Rock Shields are a reinforced ballistic textile material designed to protect feet from sharp point-load pressures from rocks. HPR outsoles are made of high-density carbon rubber for outstanding durability and feature aggressive lugs for maximum trail bite. Shoe weighs 10.5 oz.