Post History
In some parts of France (Particularly the Fontainebleau forest) they use a substance called POF. POF is basically tree sap, they harvest it and carry it around in bags, dabbing it onto holds, etc...
Answer
In some parts of France (Particularly the Fontainebleau forest) they use a substance called POF. POF is basically tree sap, they harvest it and carry it around in bags, dabbing it onto holds, etc...