Tenba Black Label Medium Photo Satchel (638-442) Custom foam-laminated, weather-repellent ballistic nylon exterior is lightweight but battle-tough Military matte-finish YKK zipperssimply the best money can buy Indestructible, solid steel TriAngle strap rings allow variable attachment angles to help micro-balance the load Rear trolley strap allows the bag to slide easily over a rolling luggage handle Internal floor board with 1 of padding provides extreme protection beneath contents