The Cyclismo is 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. The 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 a polyester blend known as ThermoCool, 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 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 5in Socks are available in four sizes from Small to X-Large and in the colors Black/white stripe, Black/red stripes, High Vis/black stripe, Hi-Vis Pink, White/red and blue stripes, and White/black stripe. READ OUR REVIEW