This carbon fiber half-plate speed shoe is designed for your fastest, long distance runs. Lightweight, high-cushion and ready for race day. Features Slim Footshape Fit. Weight: 7.3 oz / 206 g. Midsole: Altra EGO PRO. Outsole: EVA Foam. Cushion: High. Stack Height: 33 mm. Upper: Breathable Engineered Mesh. Balance Cushioning. Carbon Half-plate. Rocker Shape Geometry.