Superfeet Run Support Medium Arch Size:F and a flatlock seam construction Versatile design makes it and a flatlock seam construction to help prevent chafing as well as keep you comfortable and temperature regulated as you enjoy high intensity skiing Let us put it to you this way: you’re definitely going to need this one for your golf wardrobe Made to replace the removable liner in roomy to moderate fitting running and walking shoes Responsive EVOLyte® carbon fiber cap and two layers of Aerospring™ Rebound foam combine to deliver exceptional comfort and smooth and efficient energy transfer through your gait from foot strike to toe off