These classic men's black plastic eyeglasses are brand new, mint condition and ready for prescription lenses or sunglass lenses.  The frame in the photos is marked ''50 x 21'' and the arms read ''Criss U.S.A. 5 3/4 NYLON''. Other sizes will be marked accordingly, in the same way. 

		Click on a photo for the big picture.

Here's the quintessential pair of tough black glasses, the Yank, made by Criss Optical out of Kansas. They're available in a broad range of sizes, but these are the 50-21 size. Criss has made the Yank for more than 40 years now and this is the latest incarnation of the frames, with a smaller rivet shield than the old version. Criss supplied frames to the US military and still does. Their frames are made of Nylon instead of the usual eyeglasses frame material, which is called ''Zyl'' plastic. Nylon is much, much more flexible than Zyl and can be nearly twisted into a pretzel without breaking!! It comes right back to the original shape, too! These frames are really tough stuff and mighty good looking, too!

	Click on a photo for the big picture.

 

Frame Sizes:	46 - 19*	46 - 21*	48 - 21	50 - 21
Dimensions
Lens Width:	46 mm ( 1 13/16'' )	46 mm ( 1 13/16'' )	48 mm ( 1 7/8'' )	50 mm ( 1 15/16'' )
Bridge:	19 mm ( 3/4'' )	21 mm ( 13/16'' )	21 mm ( 13/16'' )	21 mm ( 13/16'' )
Temples:	You'll select your temples when adding your frame to your cart. Note: The average men's skull temple length is 145 mm (5 3/4'')
Hinge to Hinge:	121 mm ( 4 3/4'' )	123 mm ( 4 7/8'' )	128 mm ( 5 1/16'' )	132 mm ( 5 3/16'' )
Full Front Width:	133 mm ( 5 1/4'' )	135 mm ( 5 5/16'' )	138 mm ( 5 7/16'' )	143 mm ( 5 5/8'' )
Lens Height	33 mm ( 1 5/16'' )	33 mm ( 1 5/16'' )	35 mm ( 1 3/8'' )	37 mm ( 1 7/16'' )
More sizes below. For measurement basics click here. Sizes marked (*) are not stocked, but readily available. Please allow an added 5 to 10 business days.

Temples are measured their full length, hinge to tip, as though they were straightened out. Why? Because they're adjustable, so measurements to the bend vary. Lens and bridge measurements are from lens edge to lens edge. Hinge to hinge is measured from screw to screw. The frames are made by injection molding the Nylon and as a result will have some bubbles and scratches from the old molds.

For some fun history, take a look at the original pamphlet that came with Criss frames back in the 1950s and 1960s! 

The advice in there is still true today - don't be concerned about getting your frames wet - it's actually good for them!