The Nike Freek Wolf Grey/Blk-Drk Grey is one of the most popular shoes in Nike Wrestling's history. Flexible grooves in the outsole were the predecessor of the Nike Free articulated outsole. Velcro lace management system to comply with High School and Collegiate regulations. Ventilation is also built into the outsole to help manage temperature and aid in the drying of the shoes after sweat workouts. The Nike Freek is made to support even the most powerful athletes the upper has substantial use of mesh and is reinforced with leather and synthetics.