This is a brand new pair of black over-calf Unisex Thorlos Ultralight Hiking socks. They are in the original packaging and have never been worn. This is an awesome brand that will surely keep your feet happy when you are out on the trail. Unbelievable quality with great longevity. Made in the USA. Men's US size: 9 -12.5 (or) Women's US size: 10.5 -13.0