3 for 2 on all socks T&C's apply The crew length 1000 Mile Approach Sock is designed for maximum comfort with today’s technical approach footwear. The inner layer stays with the foot, wicking away moisture, whilst the outer moves with the shoe, reducing friction & helping to prevent blisters & reduce wear. The unique combination of fibres maintains a comfortable temperature for the foot, making this the perfect warmer weather outdoor activity sock to wear with lightweight boots as well as approach/trail shoes & sandals. Arch bracing for additional support & custom fit Heel Power design grips the heel firmly in place – so no slippage! Double layer construction eliminates friction between foot & shoe, reducing wear & helping to prevent blisters 71% Recycled Content