Learn more about Carhartt. The Carhartt Mens Rugged Flex Hamilton Plaid Long-Sleeve Shirt flexes to move with you thanks to Rugged Flex stretch technology. Carhartt-strong, triple-stitched main seams ensure it holds up well to years of use and abuse, while the midweight 5.5-oz., 97% cotton/3% spandex flannel is garment-washed for a soft feel and reduced shrinkage. The Carhartt Rugged Flex Hamilton flannel shirt for men sports a button-down collar and 2 chest pockets with additional left-chest pocket panel. Relaxed fit. Machine wash. Imported. Carhartt style #: 103820. Sizes: M-2XL. Colors: Black, Dark Cedar, Navy, Dark Khaki. Type: Long-Sleeve Shirts.