Perfect for a walk about in your local National Forest. Cushioning just underfoot creates the perfect sock for just about any activity and all day comfort. 25% of the purchase price of this sock will be donated to the National Forest Foundation who&';s mission is to engage Americans in promoting the health and public enjoyment of our National Forests. Contents: Wool 56% | Nylon 39% | Elastic 5% *Discount codes, promotions, and sales do not apply to this sock.