Materials: 75% Acrylic, 20% Polyester, 5% Spandex.Imported.Machine Wash.PERFECT THERMAL CREW SOCKS - With ultra warm thick fluffy lining, these thermal heated socks will keep your feet warm all the time Elastic cuff prevent slipping off and ensure comfortable. Reinforced heel and seamless toe enhance durability and comfort. The upgrade material of the thick socks has the moisture control that keeps your feet dry and fresh. These cushioned socks will be gentle with the skin of your feet and legs and it will never irritate it nor make it itchy. NO MORE COLD FEET - Extra warm thermal socks for the extreme cold weather during the winter. Heavily brushed lining makes these insulated heated socks super soft and provides maximum comfort. Thick winter socks are perfect for lounging around the house, snowboarding boots socks will keep your children's feet and leg toasty. ANTI SLIP GRIP SOCKS FOR MEN & WOMEN - Regular thermal socks won't keep you from sliding on slippery floors in winter, our thermal slipper socks offering excellent grip to prevent you from falling while walking on smooth surfaces such as wood floors.And,superior cushioning in the footbed to maintain comfort even after long hours on your feet. One Size fits US Women Size 5-10 US Men Size 6-9.MULTI-USEING - Thick but lightweight heated thermal socks are suitable for many situations, you can wear them as house slippers socks, hiking socks, winter warm socks, skiing, snowboarding, climbing, outdoor socks and any type of winter sports socks. What's more, ideal choice for those who spend all their working day outside in the cold. You can wear these thermal warm socks as christmas socks, sleeping socks or daily cozy socks in any cold weather areas.EXCELLENT GIFT CHOICE - We have 6 colors for men and women to match with your pants and shoes. Warm Insulated Heated Thermal Socks will be great gifts in Christmas or other holidays. Thermal winter socks make the perfect present for hikers, outdoor workers, for Thanks-giving or Daily Wear. Sweet gifts in winter for family, friends and anyone you love, as birthday, Anniversary, Christmas g