VonZipper Fulton sunglasses.Base six spherical lens. Impact resistant polycarbonate frame. Nylon grilamid frame. Stainless steel optical hinges. 100% UV protection. Shift into Neutral is a collection of VonZipper sunglasses that are made from the environmentally friendly and sustainable oil derived from the castor bean. This oil is a non toxic, renewable resource that can be used to create frames with the same strength and flexibility as traditional sunglasses while maintaining a supple hand. Imported.