HELP DESK : 990009900In article number 2503772, Radek Zboril, Soon-Gil Yoon, Kolleboyina Jayaramulu, and co-workers report a stretchable self-powered e-skin device based on a covalently engineered hybrid of amine-functionalized graphene and carboxylated nickel-based metal–organic polyhedra via amide bonding. The resulting hybrid exhibits remarkable stretchability high triboelectric output and excellent strain sensitivity making it suitable for efficient energy harvesting and sensing under extreme mechanical deformation.