Shop Davis Big and Tall for Big and Tall overalls. Our King Size department has sizes all the way to a 66 inch waist. Whether you want a zip fly, button fly, stonewashed or rigid, Davis Big and Tall has it. These Big Overalls and Tall Overalls are available in denim and are known for their durability and comfort. You can expect the best from brands such as: Liberty, Big Smith, and Key. Shop Davis Big and Tall for big mens liberty overalls, tall mens liberty overalls, big mens big smith overalls, tall mens big smith overalls, big mens key overalls, and tall mens key overalls.