What is a custom cowboy hat? It is a hat that is made by hand using a few small tools. A Custom Cowboy Hat is not made with machines. It is made by a single hatter who creates a hat with his hands , and works with the customer. A custom made hat is made to fit the customers shape of his head and the way he wishes it to look. A custom made cowboy hat is a high quality hat made of the finest fur felt bodies.