Bone Heads Socks by Socksmith are the perfect gift for that socks lover in your life. These skulls themed mens crew socks come in multiple color Options and fit U.S. Men's shoe size 7-12.5. Made of 70% Cotton, 27% Nylon, 3% Spandex for comfort and durability. A pair of these cool Skulls novelty Socks will certainly give any wardrobe an instant upgrade. Machine Wash Cold With Like Colors. Do Not Bleach. Tumble Dry Low Heat.