Books Socks by Hot Sox are the perfect gift for that socks lover in your life. These book themed mens crew socks come in multiple color Options and fit Men's Shoe Size 6-12.5. Made of 50% Cotton 26% Polyester 21% Nylon 3% Spandex for comfort and durability. A pair of these cool Book novelty Socks will certainly give any wardrobe an instant upgrade. Machine Wash Cold, Inside Out. Only Non-Chlorine Bleach when needed. Tumble dry low. Do not iron.