Giro: ALL OUT PERFORMANCEThe HRc Team takes sock performance to another level. We worked with several high profile Pro Tour road racers that wanted qualities similar to compression socks for increased circulation & greater arch support. The resulting HRc Team sock is so thin & supportive it feels like nothing you've ever had on your feet. Other noteworthy details include Meryl Skinlife fibers that wick moisture away & help maintain your skin's natural bacterial balance & a strong & stylish 6-inch cuff.CONSTRUCTION: Meryl Skinlife construction Hight rise 6" cuff Made in Italy