Our 4mm Everlasto bungee cord also known as shock cord is made with a polypropylene outer for grip and durability and a highly elastic natural rubber core. These shock cords are capable of up to100% elongation. Some common applications for 4mm bungee cord are with tents, awning poles, peg loops, rucksacks and outdoor clothing, small boats and kayaks. We also stock a selection of bungee cord accessories such as hook ends, perfect for making luggage elastics to the desired length. Our 4mm shock cord is available in a range of set lengths.