These retro-style socks, mimic a lava lamp and add a groovy touch to your outfit. Packaged to look like a lava lamp! Fun and comfy blue and pink unisex crew socks are made from a blend of 57.3% polyester, 19.5% metallized fiber, 18.2% polyamide and 5% elastane. One size fits most, machine washable, they reach to lower-calf on most and fit US size 5 to 11.