First impression: TOP 2

1. Processing:

The seams seem meticulously crafted, the camouflage terms seems durable and looks great.
The closure of the strap is unfortunately none with push button or buckle, but the Selberdurchfädeln but looks relatively safe after lashing.
Leatherette, the "ear flaps" are made which I would one not too long life trust, but let's see.
The padding inside (polyester mesh on styrofoam) looks well made and will serve their purpose.

The delivered to "aviator glasses" seems well made, but again, I'm still concerning. Of artificial leather a bit skeptical.

2. Size:

I have measured out my skull by tape measure and ended up with 57 cm circumference. So I ordered an M-size and behold: It fits perfectly and is very comfortable because of low weight.

Conclusion:
A top price-performance ratio!
Should turn out serious shortcomings in the next six months, I will this grudge here.