The Hackel shirt is breathable, moisture wicking, and wrinkle free. The perfect shirt for the guy on the go is here. All of our shirts include our signature Tweener Button which sits hidden between the 2nd and 3rd button for the perfect casual look. Features a crisp blue and gold plaid pattern that's easy on the eyes and great for work, travel, and day to day activities. The Hackel Shirt features a crisp blue and gold plaid pattern that's easy on the eyes and great for work, travel, and day to day activities.