Common materials for kayak bungee cords include rubber plus outer jackets or braids made from polypropylene, polyester, or nylon.
Typical uses include securing kayaks on the water, camping gear, anchoring tarps and canopies, vehicle tie-downs (bikes, ATVs, trucks), and general outdoor or storage tasks.
Some sets include a zippered organizer, storage bag, or handy container; others use color coding to speed selection and keep cords organized.
Yes—several assortments are color-coded by length so you can quickly pick the right cord; listings describe multicolored or color-coded sets tied to specific lengths.
Both formats are available: long spools sold by the foot/meters (for example 120 ft / 36 m) and pre-cut inch-sized lengths sold in assorted multi-piece sets.