High-impact, 2.2mm polycarbonate lenses ANSI Z87.1-2015 compliant Rotating lens gate provides rapid lens exchange and secure lens retention under impact 100% UVA/UVB protection These high-impact, 2.2mm polycarbonate Hi-Def Bronze accessory lenses fit the ESS Rollbar sunglass. The Rollbar sunglass frame features a rotating lens gate that provides extremely rapid lens exchange and secure lens retention under impact. Specifications Brand: ESS Manufacturer part #: 101-286-003 Category: Shooting & Range Equipment › Eye Protection Shipping weight: 0.08 lb Country of origin: US Ships fast from GunCycle — free economy shipping on orders $99.99+.