Wearable electronics are expected to be light, durable, flexible, and comfortable. Many fibrous, planar and tridimensional structures have been designed to realize flexible devices that can sustain geometrical deformations, such as bending, twisting, folding, and stretching normally at ambient conditions. As a flexible electrode for batteries or other devices, it possess favorable mechanical strength and large specific capacity and preserve efficient ionic and electronic conductivity with a certain shape, structure and function. To fulfill flexible energy-storage devices, much effort has been devoted to design of structures and materials with mechanical characteristics. This review attempts to critically review the state‐of‐arts with respect to materials, and structural design of devices as well as applications of the wearable electronic products. Finally, discussion present regarding to limitations of current materials, fabrication techniques, devices concerning manufacturability and performance as well as scientific understanding that must be improved prior to their wide adoption.