In partnership with pro skier; gold medalist; and Smartwool athlete Mikaela Shiffrin; we constructed her signature sock; the PhD® Pro Ski Race. We built these socks with our Indestructawool™ technology for enhanced durability; our 4 Degree™ elite fit system for a dialed-in; performance-oriented fit; and our Shred Shield™ technology for reduced wear from toes. Its design includes contoured shin cushioning; as well as a wider welt for a secure fit and comfort. The newly engineered arch elastic helps enhance ski feel and in-boot fit. The only thing that feels better than these socks is winning the race.