Elastic Bungee / Shock Cords are elastic and are resistant to air and wind pressure. They are extremely tough, woven polypropylene braiding covering a strong rubber latex core. The cord is light-weight, strong, wear-resistant and long lasting. Capable of stretching under load to about one and half it's untensioned length. The cord is particularly suitable for tarpaulin/soft cover tie-downs for trailers, pick-ups, roof-racks, boats, trampolines and garden furniture etc.