Why are they called emperor penguins? Because they totally rule! These men's penguin socks are covered with regal emperor penguins. These big birds can weigh up to 99 pounds, making them the largest penguins in the world. Wear a pair of men's penguin socks for happy feet. Fits men's shoe sizes 8 to 13. 63% cotton, 34% nylon, and 3% lycra. Made in Korea.