A shoe so trailblazing that it defied classification, the Marathon TR launched the entire trail running category. The design was personally overseen by founder Adi Dassler, and these men's shoes are a faithful recreation of the '79 original. The upper is made of synthetic mesh with pigskin nubuck overlays at the toe, heel and eyestays. The EVA midsole has authentic webbing detail. The rugged outsole features extra-toothy lugs in the shape of Trefoils.