Edelweiss low stretch ropes are the perfect combination of price and quality. Edelweiss low stretch ropes differ from American static lines due to the fact that they are designed to take up to a factor one fall. These ropes WILL stretch a little to allow them to absorb a fall. The lines are made completely from Polyamide (nylon), which gives them a high strength while still allowing them to stretch a little. These ropes are great for cavers, canyoneers, and climbers.