Natural rubber is extracted from the latex sap of rubber trees, primarily grown in Southeast Asia, Africa, and parts of Latin America. Trees are tapped without being cut down, allowing repeated harvests over time. Sustainability challenges include monoculture farming, deforestation, and labor practices. Certifications such as FSC® and Fair Rubber help improve traceability. Natural rubber is commonly used in footwear soles, mats, home goods, and elastic components.