One of the most popular shoes in Nikes wrestling history it features flexible grooves in the outsole to promote natural movement. Velcro lace management complies with high school and collegiate regulations. Ventilation built into the outsole helps manage temperature and aids in drying the shoes after your workouts. Substantial use of mesh is reinforced with leather and synthetics. Textile for flexibility and comfort. Rubber and/or plastics for flexibility. Rubber and/or plastics for durability.