Gentle On Your Skin RockTapeRx is recommended for less active populations, including children, the elderly, pregnant women and those with neurological disorders. It is specially designed to be gentler on skin than other kinesiology tapes. Quality Material Constructed of 97% cotton and 3% nylon, this kinesiology tape has a 180% stretch for full range of motion movement. You get the same top quality tape with great elasticity and reinforced with nylon fibers for additional support. How It Works RockTapeRX microscopically lifts the skin away from the muscle and fascia, which decompresses the area and can reduce swelling. RockTapeRx also sends different information to the central nervous system through the skin’s nerves, which provides powerful feedback that can minimize pain and cue form.