i've used them for well over 10 years and love'em. i was so glad when Sherrill started carrying them.
No rust. Over 15 pairs.
Light cleaning of foam and head band to keep from getting to bad in the summer.
Keep address off of packing to send away for foam replacement pads, they only send 10 at a time though. Clean old adhesive from goggles with rubbing alcohol. Dry , put on new foam. Rubbing alcohol will really clean the head band too, but the elastic seems to lose some elasticity, and holds strong smell for a few daze.
Most likely breaking point is the bridge piece coming off either of the inlets over the eye tears/ and or comes off rivet and out.
Solution: Krazy Glue piece back in where it goes, press over rivet then pack with news paper piece or toothpick etc. to pack pressure on top of nose peice so it can't come off rivet, let packing absorb Krazy Glue and harden. Wear the next day.
They cut down light for me, but at dusk that gets to be too much. Very, very good for terrorrizing lil'kids. Let fine dust, sand, mist through.