In evaporative cooling both water absorption capacity, durability and protection of cooling pad against the fungus and bacteria are very important needs to supply clean, hygienic air with better cooling effect. In current invention the charcoal has been used as the base material and the natural rubber as the flexible bonding agent for the cooling pad to provide these desired effects. Further, it may be added with mammalian hairs to enhance the coefficient of performance. The mammalian hair has tendency of simultaneous longitudinal and transverse expansion when wetted with water. They again shrink to their original shape on being dry. Thus, it develops a breathing effect in the cooling pad. A cooling pad for evaporative cooling system which comprises charcoal, natural rubber with or without mammalian hair are bounded together as a composite material by mixing charcoal, latex of rubber tree and mammalian hair (if added) in presence of rubber crosslinking agent.