12-ounce, 100% cotton duck with Realtree pattern. Nylon quilted to midweight-polyester insulation. Multiple tool and utility pockets. Hammer loop. Ankle-To-Knee zippers with protective wind flaps. Double knees with clean out bottoms that accommodate knee pads. Triple stitched main seams. Metal rivets at vital stress points. Inseam-Large Short=29 inches. Large Regular=31 inches, Large Tall=33 inches.