non-constricting sock cuff, rib construction to improve ventilation to leg, selective shin padding, special knit technology to support calf muscles, 3 compression zones for optimal leg musclerelief and faster blood circulation, ankle support, cordura reinforced heel for high aabrasion resistance and anti slip fit, instep pad with air ducts to improve foot climate and absorbance of pressure caused by shoelaces, polypropylene padding for optimized moisture management, ergonomic foot padding, shpaed channel for optimized toe adjustment, cordura reinforced seamless toe tip for added toe protection