The brooks mens beast 20 is a high-performance running shoe designed for those who need maximum support and stability. It features brooks most advanced technologies to help runners with severe overpronation and heavy weight stay comfortable and supported during their runs.the shoe is built with a strong and durable upper made of synthetic leather and mesh that provides both support and breathability. The upper is designed to keep your foot securely in place while allowing air to flow through keeping your feet cool and dry.the midsole of the beast 20 is made of brooks super dna technology which is a highly responsive foam that adapts to your stride and provides maximum cushioning and shock absorption. It is designed to be durable and long-lasting so you can rely on it for many miles of running.the beast 20 also features brooks extended progressive diagonal rollbar technology which is designed to help control your foot's pronation and prevent excessive inward rolling. This technology works in conjunction with the shoe's biomogo dna cushioning system to provide a smooth and stable ride.the outsole of the beast 20 is made of high-quality rubber that is designed to be both durable and flexible. It features a segmented crash pad that helps absorb shock and provides smooth heel-to-toe transitions.overall the brooks men's beast 20 is a top-of-the-line running shoe that is designed for those who need maximum support and stability. It is built with the latest technologies to help keep your feet comfortable and protected during your runs.