Ships on 10/4 apparently... It looks like it's some kind of glass, maybe not the normal hard tempered glass type, but they claim 8H hardness.
http://www.iloome.com/LG-G2-Screen-Protector-Flexible/dp/B00F4IIGMM
http://www.iloome.com/LG-G2-Screen-Protector-Flexible/dp/B00F4IIGMM