Athletic Propulsion Labs Women。MSPR $350. With its incredible lightweight, innovative AeroLux ™upper, this performance runner provides long-lasting, superior cushioning, rebound, and energy. Upper: APL AeroLux Weight: 7.3oz Midsole: APL FutureFoam Outsole: Two-piece rubber Maximum cushioning, two-piece APL FutureFoam midsole specifically tuned for running. Slanted shank plate encourages forward motion upon foot strike. Lightweight, solid rubber outsole designed for road and gym use. The APL AeroLux upper combines a lightweight, breathable, and strong woven textile with thin layers of support and vector flow lines. 3D molded heel padding and microfiber collar edges. All new proprietary 5mm APL Soufflé sockliner. The 8mm drop from the heel to the forefoot places your foot in a natural position for efficient running. APL is always pushing the limits of what’s possible in performance, and their newest introduction, the Streamline, is their purest, most purpose-built running shoe to date. A streamline, by definition, is a design that presents very little resistance to a flow of air, increasing speed and ease of movement. To achieve the superior comfort, cushioning, and speed that the APL Streamline delivers, they created a new midsole and outsole made from our newest compound, APL FutureFoam™.