BLOCKALLS IFR View Limiting Device
I have around 45 hours with these glasses and will not buy anything else. Very comfortable, no headaches like some, limits view to instrument panel only.
I like these a lot better then the frosted 70's vintage look LOL
Stylish & functional
I got these because I didn't want a lot of background light. After two uses, they've worked well and my instructor says they're the most stylish glasses he's seen.
They fit great and really helped me grasp IFR and VFR flights