These cozy hand-knit spiral slipper socks were crafted with premium Charisma bulky yarn in Willow by Loops & Threads for softness and warmth. The spiral design eliminates the need for heels. These slipper socks can be worn cuffed or slouched. I consider these as a small as they measure 12 3/4" in length and will fit a 7" to 10" calf.