Isakhelo esicacileyo, i-lens ebonakalayo, uyilo lwe-ergonomic, ukhululekile ukunxiba ingubo yohlobo lweglasi, i-aeration flank, isakhelo somfanekiso welensi uyilo oludityanisiweyo, isakhelo semilenze yesakhelo semilenze yokwakheka kumacala omabini efilimu ekhuselayo, isakhelo sokukhusela amashiya kwindalo yonke, ukhuseleko lweflank kunye nesikwere. ukukhuselwa, ukukhululeka kwezixhobo zetsimbi, umbono wecala elihle, umbono, ukuthintela i-UV ultraviolet, ukugqoka, xa ngaphandle kweeglasi zokulungisa zingasetyenziselwa ukutyelela kwiiglasi.