The Primus Trail II Firm Ground is Vivo Barefoot’s original, best-selling trail-running sneaker. It’s light, durable and flexible for wide-ranging trail adventures that bring you closer to the earth. Continuously improved through athlete testing and material innovation, the Primus Trail II FG has nothing more or less than exactly what you need – made with high-performance, recycled, vegan* materials. This was work four times. In great condition. Sole a little dirty. Otherwise like new.