🧦 Size: US/CA 6 - 12 (240 - 300mm) 🧦 Material: combed cotton 75%, spandex 18%, polyester 7% 🧦 Design: 7DAYSSOCKS sleep socks are made using a no-pressure band method that allows a comfortable a relaxed fit. It's loose and relaxed yet it doesn't slip! Rather than putting all the tension on the band itself, the tension is spread evenly throughout the sock so that the sock itself will not slip down while maintaining a pressure free fit that does not interfere with blood circulation. 🧦 Functional: Made for those with diabetic or neuropathy conditions that need socks with a comfortable fit that are breathable, looser around the ankles, doesn't restrict, and allows for good blood circulation.