Conventional sock wisdom dictates that you can either have padding for protection and comfort or two layers for reduced friction. The 1000 Mile Fusion Sock breaks that mould with innovative design and material technology. It provides a sock that offers everything: the 1000 Mile double layer sock's BLISTER-FREE GUARANTEE, but with padded comfort and protection. Just what you need when you're in the thick of it. This product contains Merino Wool: Merino wool is one of softest types of wool available and is perfect for regulating body temperature. The wool provides warmth without overheating the wearer and it's moisture wicking properties combined with being slightly moisture repellent allow the wearer to remain dry.