pre owned condition, size 11.5see photos for details The dual-density sole evenly distrubutes the force of impact, protecting your feet and legs as you run, yet the material is lighter than ever before.Add in the rubber sole that's reinforced in key wear areas and you've got a sneaker that was made for some serious miles.Crush the competition in the ZigTech model from Reebok,the ZigUltra Crush running shoes. Boasting an advanced updatedZigTech sole, these sneakers have the stellar technology you needto tackle your next run.C1