Mens Rubber Rain Boots are made using natural materials from rubber trees. First slits are cut in the bark of a rubber tree. The sap that is drawn from these slits is a sticky, milky liquid that's collected in buckets. EXCESS WATER REMOVEDThe rubber is then processed by removing excess water and mixed with other materials to create a rubber compound. BLOOMINGSometimes you might see a white film...