Lightweight non corrosive durable nylon frame for all day comfort. The bifocal portion of lenses is not polarized so you can still read your instruments. No more switching glasses to tie those hooks. peripheral vision. These polarized knot tyers come in handy when you need magnification to tie those hooks.
*Polarized Lenses With Built in Magnifier
*100% UVA/B Protection
*Fit Small to Medium Size Heads
*Lens Size: 70 mm by 38 mm, Temple 127 mm
*Come With Free Lanyard and Microfiber Cleaning Case