The FR-C sock is made from a lightweight but supportive fabric which regulates your foot\'s temperature while providing outstanding comfort. These are some of the most comfortable summer socks available in the Giordana line due to their ergonomic cut that comfortably encompasses the rider\'s foot.. The fabric is anti-static. anti-stress and anti-bacterial. Provides and promotes temperature regulation. circulation and durability. Contoured to your foot for optimum fit. Tall Cuff = 11 cm (with 5.5 cm heel to cuff). Made in Italy