From riding along BC's Sea-to-Sky corridor to pushing up steep Rocky Mountain passes, the DeFeet Skyline Aireator Hi Top 6in Socks keep your feet pleasantly cool in high-elevation appeal. CoolMax EcoMade recycled yarns actively wick moisture to promote evaporative cooling. Mesh ventilation rapidly cools your feet when you're riding long distances in stifling heat. The compression double cuff retains an ultra-secure fit as you grind up steep grades and plunge down hillsides at breakneck speeds. And to ensure longevity, durable heel and toe panels keep premature wear at bay throughout the season.