The original Cyclismo was the result of DeFeet setting out to create the ultimate modern cycling sock. In other words, DeFeet combined its best materials and innovative fit technologies together in the form of a streamlined, comfortable, and versatile cycling sock design. This concept has been furthered with the wool iteration, as all of the Cyclismo's best attributes carry over, with the addition of a lightly insulated American wool composition. The original Cyclismo socks were developed in conjunction with a DeFeet sponsored professional athlete's input, which is why they feature a specific lightweight material and innovative fit attributes. The material used to create the socks is American sourced wool, which provides exceptional moisture management, breathability, and soft next to skin comfort throughout a wide range of temperatures. Starting with the toes, DeFeet applied its signature No Feel Toe Seams. This is a construction method that tucks in the seams in order to ensure that your toes remain comfortable and chafe free throughout the duration of your rides. At the metatarsal region, Meta pads were built into the Cyclismos. Essentially, this is a lightly padded section at the ball of the foot, which increases comfort through its lightly cushioned composition directly above the pedals. Reinforced heels add to the socks' overall durability, and lightly compressive five inch cuffs provide both support and additional coverage around your ankles and lower legs. Additionally, the Cyclismos are left and right foot specific. The DeFeet Cyclismo Wool 5 inch Socks are available in four sizes from Small to X Large and in the colors Charcoalwhite, Charcoalcarolina blue, Charcoalhi vis pink, and Naturalblack. All DeFeet socks are made in the USA.