Shimano S-Phyre Merino Long Shoes Black Gray:Professional grade merino wool racing socks provide year-round comfort and keep your focus on riding. Shimano S-Phyre Merino Long Shoes Black Gray:Professional grade merino wool racing socks provide year-round comfort and keep your focus on riding. Characteristics:All-season racing socks designed to work in conjunction with S-PHYRE shoes. The mid-calf height pairs well with leggings.The merino wool blend wicks away moisture and keeps feet comfortable. The fine knit sole directly transfers power. Non-slip and durable knit heel