An insulation system for an aircraft fuselage uses a plurality of stringers extending longitudinally. An insulation blanket is configured for installation on the stringers and a plurality of stringer clips are attached to and extend from an outboard side of the insulation blanket. Each stringer clip has a connecting flange engaged to a cover of the insulation blanket. A first attachment arm extends outboard from a first end of the connecting flange and terminates in a first hook resiliently engaging the stringer. A second attachment arm extends outboard from a second end of the connecting flange and terminates in a second hook resiliently engaging the stringer.