Sole for footwear or footwear attachment having multilevel cleats for indicating wear and providing enhanced traction and flexibility

摘要

A ground engaging portion of an article of footwear for enhancing the traction and flexibility of the ground engaging portion has a plurality of multilevel cleats. The multilevel cleats include a plurality of cleat base elements extending upwardly from a surface thereof to define a first level of the multilevel cleats. A plurality of cleat top elements extend upwardly from a surface of a selected cleat base element to define a second level. The cleat base elements are arranged upon the surface of the ground engaging portion to define both longitudinal and transverse base element grooves therebetween. The cleat top elements are disposed upon a cleat base element to define both longitudinal and transverse top element grooves therebetween.