The Missoula is named for the northern Montana fly fishing paradise with its numerous trout-filled rivers, streams and lakes. The crew height Missoula is knit with 22-micron US merino wool with half density cushioning in its foot bottom. It is available in three trout inspired designs - rainbow, brook, and brown - which feature the colors of the flashing side of each species around the calf. Fit & Design: Cushion that is light in weight along the base of the foot only Highly versatile, all-season construction Traditional sock height that fits firmly on the lower calf, also known as the daily Advanced knitting techniques create a totally flat connection in the toe box, reducing bulk and eliminating blister-generating friction Reinforced construction and low-stress seam placement reduce wear and tear, increasing the life of the sock Additional Details: Merino wool is soft, itch-free, naturally odor- and bacteria-resistant, cool in the summer and warm in winter Farm To Feet sources their 100% U.S. grown merino wool exclusively from sheep raised by American farmers on American farms