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. Light Cushion: Cushion that is light in weight along the base of the foot only. This all-season construction is highly versatile. Low Cut: Below the ankle, this sock just barely peeks out of your shoe. 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. Advanced knitting techniques create a totally flat connection in the toe box, reducing bulk and eliminating blister-generating friction