Select Size to see the return policy for the item.93% Acrylic, 6% Polyester, 1% Elastane.SOFT & COMFY: thermal boot socks are not only practical, but unbelievably soft and cozy Heavily brushed fuzzy lining makes these stretchy socks provide warm and comfort for feet in extended outdoor trail cold weather gear.MULTI-FUNCTION: The high-quality thermal socks are suitable for different situations, you can wear them as cabin socks, office socks, hiking socks, thermal socks, heavy socks, warm socks, winter socks, fuzzy socks, outdoor socks, sports socks.MOISTURE WICKING: The material absorbs sweat and moisture, maintains dryness. Perfect for cold winter weather gear outdoor activities like skiing, hiking, and sledding. Your feet will stay cozy and dry all day .DESIGNED FOR EXTREME TEMPERATURES: 7X WARMER THAN REGULAR COTTON SOCKS The insulated heated socks have been specially designed to keep your feet warm even when the temperature outside is way too low.RISK FREE GUARANTEE: Your purchase is fully protected when you order in THERMAL SOCKS. We pride ourselves on the integrity and quality of our products, and firmly stand behind all that we sell. Alls items are with 100% money back guarantee. If you have any issue with Your Heavy Winter Crew Thermal Socks, contact us freely. We offer 100% satisfaction guarantee, TOTALLY RISK FREE.