Amazon.com | PUMA Mens Porsche Design Xetic Graphic Lace Up 。Puma Porsche Design Xetic N Motorsport Blue Shoes 307055-02 Men’s Size 10.5 MSRP $325 No box lid State-of-the-art design and technology: the Porsche Design Xetic Mesh Shift relies on a forward-looking design – and the latest midsole technology from PUMA: Xetic. The innovative technology, a combination of foam and a special structure, is inspired by science and was developed in cooperation with a renowned technological institute. The result is a groundbreaking cushioning system engineered specifically to help runners achieve more personal bests. Iridescent detailing on the textured upper picks up on the striking design of the sole – and gives the shoe a look that borders on futuristic. The perfect teammate: the Porsche Design RCT Jacket in a matching style. - DETAILS: High-performance trainer with Xetic midsole technology Future-forward design with iridescent reflector elements Recycled upper material and chrome-free leather Rubber outsole THE MATERIAL Upper material: mesh made of 100% recycled polyester, inner material: plastic, tongue: polyester and chrome-free cowhide, sole: plastic