Most socks have to make a compromise between padding for protection & comfort, or two layers for reduced friction. The 1000 Mile Fusion Sock breaks that mould with innovative design & material technology that offers both. The Fusion Walking Sock has a blister-free guarantee. Its padded comfort & protection are just what you need when youre in the thick of it. Achilles tendon protection is provided by full length padded protection for the Achilles tendon; the first sock to offer you this. With arch bracing for additional support & padded comfort zones on the toe, heel & ball area of the foot there is a supreme amount of extra comfort & protection. The double layer construction eliminates friction between foot & shoe, reducing wear & preventing blisters & the Tactel inner layer wicks away perspiration to keep feet dry & cool. This is a high performing sock that offers an exceptional level of comfort & support.