There are a variety of choices for my slings, and the list looks like: Flat Nylon, Tubular Nylon, Heavyweight Polypropylene, Lightweight Polypropylene, Polyester, and Tubular Polyester.
VELCRO fasteners have been used in everyday activities for over 50 years. They are easy to use, maintenance free and safe, the hook-and-loop fasteners have been used for just about every conceivable application where a temporary bond is required.