Cassius has announced it will release an updated version of the CORBU sunglasses dubbed ‘Edition X.’ Drawing on the expertise of the same artisans that produce frames for Linda Farrow, the newlook CORBU is said to feature a more modern fit and finish, and will be available in black, coffee, ivory and mustard. The official release is set for March 2010 and only 300 units of each color will be available through Cassius retail outlets.