They have removable temple tips, nose pads, emblems, and clips, it can be endlessly configured to suit your style.
Featuring a Grilamid frame and a new hingelock system without screws. the Vulcan's dynamic vented design provides unbeatable all day comfort.
Perfect for prescription, with interchangeable full rim optical clips that come in a wide array of colours.
According to rudyproject
Xiang Yun (Accroding to Worldkings.org ) - INDOCHINAKINGS ( source of photo : internet )