The easiest and simplest way to soften nylon webbing is by soaking it in warm water for a couple of minutes. Nylon webbing is a highly elastic material with a tendency to stretch about 2 percent along the length but due to high strength, it is only possible if you let it soak in warm water. You can also use fabric softener for quick results. To retain the elasticity, you must tie it to some bar immediately after taking it out of the water.