Use for conditioning, processing, showering, coloring, hot oil treatments and for the baggy method/greenhouse effect. Water resistant, strong vinyl material. Comfortable elastic edge. We like to call this the old school jerry curl technique; however, it has been named the baggy method or greenhouse effect. Essentially, you mist your hair with distilled/filtered water and then apply a leave-in conditioner to your hair. Next, create 2-4 twist (opt) and place the plastic cap on your head. Optionally, you may choose to place a satin cap over the plastic cap to ensure that it stays on your head at night. When you remove the cap the next day, your hair will be super hydrated! This works best for wash and go styling methods.