U.S. Merino Wool: We source our 100% U.S. grown merino wool exclusively from sheep raised by American farmers on American farms. Merino wool keeps you cool in the summer and warm in winter. Full Cushion: High-density cushion from top to toe for all day performance. Seamless Toe Closure: Advanced knitting techniques create a totally flat connection in the toe box, reducing bulk and eliminating blister-generating friction. Durability Assured: Reinforced construction and low-stress seam placement reduce wear and tear, increasing the life of the sock. Height: knee-high The Farm to Feet Jericho Full Cushion Over-the-Calf sock is designed for many of the harshest conditions to be found in the field. With full-density padding from top to toe and a heavyweight 100% US-made Merino wool knit, this sock is built for comfort. Traditional outer plaiting construction positions most of the wool fibers next to skin for optimized insulation and effective moisture wicking.