To create our new favorite road shoe, Sidi took the slipperlike synthetic upper, full-carbon sole, and adjustable heel retention of its top-of-the-line (and rather narrow) Ergo 2, then reassembled it all for those of us with wider feet.
New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! .