Pilla worked with the #1 Archer in the world Erika Jones to refine the concept and the Mask System has re-written the book on performance glass geometry. The Mask System is secured using a suede lanyard which can easily be adjusted for pressure using a slide on the backside of the head.
The actual need for tightening to secure the lens is minimal as the Pilla/ZEISS lens technology is so light in weight that it basically sits on the bridge with no pressure from the lanyard. The visual picture is unmatched through the lens as there is no nose piece interrupting the archers vision. The lens design is fit with a wide Megol sweat bar that promotes air flow from top to bottom as well as through the front side of the sweat bar.
This innovative sweat bar design acts like a frame and provides a very comfortable fixing point to the head. The Mask System should be worn so the sweat bar anchors the lens to the face. In addition to the venting system in the sweat bar, there are additional venting holes in the lens that are angled which pushes air down the backside of the lens. This design is to help reduce any fogging in high humidity situations.