A skin graft is required to mend a lower leg wound when there is not sufficient skin in the area to suture the wound closed. The aim of our project is to demonstrate: 1. that a new type of wound dressing, called PICO dressing, is equivalent to a standard dressing in term of graft take rate. 2. that the PICO dressing is superior to a standard dressing in terms of quality of life of the participants during the healing process (up to 4 weeks).