Abstract: Nanomaterial-coated fibers and methods of manufacture thereof are provided. A nanomaterial-coated fiber includes a stretchable fiber core and a mesh of high aspect ratio nanomaterials coated around the stretchable fiber core. The mesh imparts a material property to the nanomaterial-coated fiber continuous throughout a length of the nanomaterial-coated fiber. The mesh maintains the material property upon stretching of the length of the nanomaterial-coated fiber. A nanomaterial-coated fiber is produced by obtaining a stretchable fiber core, coating the stretchable fiber core with high aspect ratio nanomaterials, and forming a mesh of the high aspect ratio nanomaterials around the stretchable fiber core. The mesh may be electrically conductive to impart electrical conductivity to the nanomaterial-coated fiber. Nanomaterial-coated fibers may be wound into a yarn.