Amscan, Nerd Pocket Protector Costume Accessory - Standard Size, White - 1 Pc.

I wear white shirts and black ties. Having ink stains or pencil skid marks on my shirt is so bleh. These pocket protectors keep me looking sharp, and the women love it. These have also served well as condoms in a pinch.

This must have been intended as a Halloween costume prop. The plastic is scarcely thicker than a plastic bag. It's floppy and you can't even insert a pen without holding it with both hands.

Very cheap.