4-ounce 98% cotton/2% spandex twill - Built to move with Rugged Flex stretch technology - Garment-washed for a soft finish and reduced shrinkage - Triple-stitched main seams - Spread collar - Shorter length can be work tucked or untucked - Two chest pockets with button closure - Carhartt label on left chest pocket - Center back length 30" (medium regular length) - Replaces 106139