This 1942 Monarchs Heart KC flatbill is made of recycled flannel. Instead of 100% Wool, this heavy flannel fabric is made with Repreve recycled polyester yarn. This yarn is made from post-consumer plastic bottles by Unifi, making it the most sustainable and stylish piece in your wardrobe.  Sandlot Goods is proud to be SANDLOT | KANSAS CITY MONARCHS RECYCLED FLANNEL KC HEART HAT - CAMEL/BLACK