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; Each sock is hand-inspected for quality insurance. One-year warranty