7 strand 550 cord. Parachute cord used by the military for lots more than just parachutes. this shroud line is super versatile and strong. Paracord has a tough braided outer nylon sheath with 7 strand of twisted nylon inside. The cord is strong and flexible this way as well as lightweight. The cord is essential in survival uses of the parachute . Available in Black, Blue, Red, White, or O.D.Green, yellow, orange, purple, khaki, .