Designed for Fall/Winter 2014 Retrosuperfuture Optical collection, Numero 01 Clip On is a unique addition to Retrosuperfuture's rich catalogue of incredibly appealing sunglasses. Designed especially for those who wear prescription glasses, this classic aviator-style shape is produced in a golden galvanic and can easily be attached to your usual frame. Numero 09 Clip On sports lenses by Barberini in tempered green.