I left my glacier glasses in my car in the glove box. The windows were cracked to keep the interior a bit cool. But the next time I put on the glasses I noticed the right lens was cracked. I'm guessing there was too much stress from the heat expansion. I'd figure they were designed to withstand some high temperature, they are sunglasses after all. They are Julbo Sherpas and the car was parked in SoCal.
Anybody had similar experience?