The Surf's Up is one of Defeet's AirEator Socks- the Aireator still leads in durability, wicking, drying, and air permeability. Aireator stays cooler and more comfortable on your feet and lasts longer than anything else out there. That is why the Aireator remains the top pick of athletes competing at the highest levels of sport. Buy yourself a pair of the Defeet Surf's Up Women's Socks today!!