The wrap-around Grilamid TR90 frame can be worn either with smooth temples as a sunglass or with a detachable, adjustable strap as a goggleVented removable closed cell foam prevents lens fogging and keeps wind and debris from distorting visionPhotochromic lenses (VLT 46-15%) that change with altering light allow for greater clarity and for nightGunner also comes with a clear set of lenses100% UV protectionImpact resistant polycarbonate lensesRemovable goggle strapMedium size frameMicrofiber cloth and carry case includedTwo sets of lenses - photochromic and clearGloss black frames