Smartwool's Arabica Stripe sock is a great knee-high sock for cold days. It is knit with Smartwool's patented Fit System to ensure your sock will not bunch, sag, or bind--a valuable quality when wearing long pants and boots. The Arabica Stripe's built-in ankle and arch support makes it a great choice for long days on your feet. Smartwool knits the Arabica Stripe with higher density yarn in high-wear zones to increase durability. As with all Smartwool socks, the Arabica Stripe is naturally moisture-wicking, anti-microbial, and unfussy as it is washer and dryer safe. Let the Arabica Stripe save you from another day pulling-on long underwear. Thank you Smartwool, for another smart sock.