Most visor sunglasses holders are made of PU (polyurethane) or faux leather; some models use ABS plastic.
Most visor holders are sized to hold a single pair of sunglasses plus a few small items (cards, pens, etc.). Some listings specify the temple-space clearance — about 2 cm (0.8 in) — so check measurements if you have bulky frames.
Common features include zipper pockets, card slots, transparent pockets, phone or pen holders, storage nets, and a dedicated glasses holder or sunglass case.
Yes. Listings advise ensuring the organizer is securely tightened before driving and confirming the sunglass case does not interfere with your sightline while operating the vehicle.
Features that aid quick access include a dedicated sunglass case designed for easy on/off use, simple install/remove designs, and round-panel holders that can be operated one-handed after some practice.