Make your morning pour over a bit greener with the Reusable Drip #4 Coffee Filter from CoffeeSock. Designed to fit your Drip #4 filter perfectly, each durable organic cotton reusable coffee filter lasts for about a year and provides a robust, crisp, and flavorful profile without the paper filter taste or the french press acidity. Every CoffeeSock filter is handmade in the USA from GOTS Certified Organic Cotton by a fun-loving crew of coffee fanatics.