Polyurethane film: Transparent, high adhesion,  blocks out water and dirt yet still lets air through. Elastic fabric: Highly stretchable, soft and breathable. Cotton: Made of 100% cotton, highly absorbent, soft and breathable. http:/

   keeps the wound dry at all times. It blocks out water  and dirt and resists sticking to wounds, provides the care you need.  This product also comes in many sizes to suit your need. http://www.china-wanyi.com/