All of our socks are knit on small needle, fine gauge knitting machines. This approach produces durable, high density stitching without bulk. Less bulk means a better fit. The better the sock fits, the longer it will last. We only use fine gauge, high micron 100% merino wool in the knitting of our wool socks—we do not cheapen the wool by adding nylon or polyester to the blend of the wool. We reinforce the outside and inside of the sock with nylon and lycra for added comfort, durability and fit. Throw in 3 generations of knitting know-how, and you get one darn tough sock!