The four screws on the front piece of the frame (8 in total) make it easily accessible to replace lenses anywhere anytime. The front piece of the frame is precisely (CNC Milling) crafted from a block of aluminium, which makes it very light and durable. Aluminium, in comparison to other metals of the same volume such as titanium or stainless steel, has lower density which makes it very light.
Statement of the jury
By dint of featuring aluminium frames, along with eight screws that hold the lenses in place, these amazingly light-weight sunglasses exude a charming technical elegance. Plus the screws make replacing the lenses super simple.