Men'S Hiking Crew Cushion Socks, 3 Pairs, Tenysaf Merino Wool. Product Details Merino Wool + Nylon+Acrylic Machine Wash+Do Not Tumble Dry ,Do Not Iron Premium Material: 36% pure Marine Wool (not merino wool blend) ,35% Nylon, 27% Acrylic and 2% Elastane.Marine Wool are more breathable and warmer than other ordinary fibers, Nylon and Acrylic have features of anti-pilling and reducing wear and tear. stretchable elastic that keeps your socks from loosening and let cold air in.The perfect material ratio makes TENYSAF merino wool socks more comfortable and durable. Professional design : high-density cushion apply to the area of foot bottom, toe, heel,which could provide shock protection and absorb the sweat efficiently.Ventilated mesh panels in the instep can efficiently remove the moisture, keep your feet fresh ,dry and warm, reduce odor and maintain comfort after long hours on your feet. Widely use: TENYSAF merino wool crew socks are stylish and professional,suit for outdoor sports, hiking ,camping,climbing, skiing,running, walking and everyday wear in cold winter. With classic patterns and colors perfect for you to wear wool socks in all seasons! Wearing instructions: Machine Wash ,Do Not Tumble Dry,Do Not Iron. Two size available, Medium(M)?7-10, Large (L): 9-13, These are very soft and incredibly stretchy. Easy to put on will fit you perfectly. Customer Service - We Are Always here. Pls feel free to contract us through ?contact sellers? if our woof socks don?t meet your expectations. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.