The Puma Ferrari Shoes 826 Black/Gold 02 is all about energizing your stride for performance on the streets. Click to Puma Ferrari Shoes Black/Gold 826 More Info...WE ALSO SUGGEST PUMA SHOES Gusseted tongue keeps trail debris out. Pebax six-spike plate for lightweight, flexible traction. 400 grams of PrimaLoft insulation helps keep active feet warm. Dynamic Hammock System wraps the foot for a snug, sock-like fit that moves with you. It consists of C-Cap? molded ethylene vinyl acetate (EVA) foam with a single-density polyurethane post to support the instep.