Certain cities in the US train their firefighters on how to respond to aliens, just in case. We're pretty sure all you need are these knee high socks. We haven't been able to test the theory yet, but we think that if you flash these socks at any alien you meet, you won't have any problems. 68% Cotton, 30% Polyester, 2% Spandex. Made in Korea. Our threads are certified by OEKO-TEX Standard 100, which means we leave out harmful chemicals to keep your skin safe and happy. Approximately fits children ages 7-10, shoe size 1-5.