Need I say more, Top Secret, These retro notebook socks will bring you back to the days before cell phones. Forget texting, pass a note to your friend. These tube socks are made from a polyester blend with a black cotton toe cap. All socks are designed with an all over graphic print that won't crack or peel. Featuring an elastic cuff to create a tight, non-slip fit. Recommended for mens size 6-12. Machine washable, hang dry. Have more fun!