65% polyester/35% cotton twill. Plain front, front and back pockets, reinforced stress points that stand up to frequent washings, button front closure. US Colors: 617 Khaki, 565 Navy, 700 Spruce, 605 Brown, 645 Charcoal, 505 Black, 775 White. Canada Colors: 617 Khaki, 565 Navy, 700 Spruce, 605 Brown, 645 Charcoal, 505 Black.