King Kong bag, note the shoulder strap is not the original. The first photo is reference. Otherwise everything is original and awesome bag for meets and workouts. The King Kong bag is the first gym bag designed for elite fitness. These are hands-down the most durable, most functional gym bags available for CrossFit and weightlifting athletes. Most gym bags are made of cheap polyester. Over time, wear and tear from dirty gym floors, overstuffed compartments, and sweat-ridden gear thins many bags out. Made of Military spec 1000D nylon.