<https://rvlivingguide.com/product/hot-feet-cozy-heated-thermal-socks-for-men-warm-patterned-2-pack-crew-socks-usa-mens-shoe-sizes-6-12-5/#product>
<http://schema.org/description>
"MATERIAL: 93% acrylic, 6% polyester and 1% Spandex.\r\nCARE INSTRUCTIONS: Machine Wash Cold, Tumble Dry Low, Do Not Dry Clean, Do Not Iron, Do Not Bleach.\r\nKEEP YOUR FEET WARM: These socks are ideal for cold weather because they’re specifically designed to trap heat. They have a brushed inner lining that insulates your feet, keeping them warm and toasty."
<https://rvlivingguide.com/product/hot-feet-cozy-heated-thermal-socks-for-men-warm-patterned-2-pack-crew-socks-usa-mens-shoe-sizes-6-12-5/>