Opening a new chapter of sport eyewear. The Aspyr 3D_F sunglasses are the first in the new unravelling 3D adventure. They're light, snazzy and packed with features like snap nose pads, snap hinges and even LST lenses in select models. Due to 3D printing, the diamond grid temple design is super lightweight and keeps you sweat free in that area. Keep focus on what's ahead. RXable.