Great peripheral vision design. Comfortable neoprene foam padding and attractive frames! Shatterproof Polycarbonate Lenses. UV400 Filter for Maximum UV Protection. Scratch Resistant Coating. Soft Airy Foam. These glasses are temple to temple 138mm. If you feel your face is small/narrow try eyewear within 125-129mm; Medium try 130-134mm; Large try 135-139; and Wide try 140-145mm. Global vision lenses are crafted from shatterproof polycarbonate and decentered to provide maximum clarity and peripheral vision. All lenses offer UV400 protection and a scratch resistant coating. They Filter out both UVA and UVB rays with wavelengths up to 400 nanometers offering protection from 99 to 100 percent of harmful light. It is also our continued goal to provide our customers with cutting-edge technology that goes above and beyond UV protection. These innovations in both lens and frame construction ensure that the user has a multitude of options in selecting the right eyewear. Global Vision Eyewear products are covered by a one-year replacement warranty against manufacturer defects under normal use. Scratches are considered normal wear by industry standards and are not covered under this warranty.