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.