The XODUS Ultra was designed to be the ultimate distance shoe. Intended for extreme comfort and insane cushioning, it will take you that extra mile and maybe even a few more. Ultra plush and light PWRRUN PB cushioning is combined with a PWRRUN frame to revive your stride with optimum energy return. A redesigned PWRTRAC outsole gives incredible traction on all trail surfaces. Saucony have also provided a roomier toe box, improved rock plate and a more minimal upper to prevent hot spots. Everything about this shoe was designed with long-distance trails in mind.