The Nillkin Synthetic Fiber S is a protective case designed for the iPhone 15 Plus and iPhone 14 Plus, combining a rigid PC back shell with a flexible TPU frame. Its most distinctive feature is the pop-out sliding shutter cover for the camera, which uses a torsion spring design to keep your lenses safe from scratches when not in use. The case features a geometric woven carbon fiber texture finished with a rubber oil spray that helps resist fingerprints and scratches. To ensure a secure hold, Nillkin added laser-cut anti-slip strips along both sides, while the four corner shock-absorbing airbags and raised edges protect the screen and camera from impact during accidental drops.