Keeps feet cool and dry with Balega's proprietary Drynamix moisture wicking fibers, plus specially constructed, reinforced microfiber mesh ventilation panels. Delivers ultimate support in both arch and ankle with enhanced elastic grip construction plus a microfiber arch band. Maximizes comfort with hand-linked, seamless, reinforced toe and high heel tab that helps prevent the sock from slipping into your shoe. Provides additional no-slip security with enhanced elastane Ensures perfect fit with contoured, low volume construction, complete with reinforced microfiber toe and heel along with a unique Triple-Y heel design that creates a more formed, extra-deep heel pocket!