Work warmer in Carhartts Mens Rugged Flex Rigby Knit Flannel-Lined Dungarees. These pants feature Rugged Flex durable stretch technology, which helps you move more easily while still keeping your bottom half protected from scuffs and scrapes. 8-oz., 98/2 cotton/spandex canvas is lined with 2.3-oz., 100% polyester knit flannel for extra warmth. Design details include a relaxed seat and thighs, straight leg openings and stronger sewn-on-seam belt loops. Six pockets include a right-leg zip cell-phone pocket and a reinforced front slash pocket. Pants sit at the waist. Machine wash. Imported. Inseams: 30, 32. Even waist sizes: 30-44. Inseam: 34. Even waist sizes: 30-42. Colors: Gravel, Dark Khaki. Carhartt Style No.: 103342. Type: Pants.