Invite Only – The collection, created as part of BIRKENSTOCK’s Box project, can be ordered online and will hit the Birkenstock Box from April 17. The Box, a pop-up store which has already made stops in Berlin, New York, and Milan, will travel to Owens‘ home city of L.A. from April 17–21 to debut his designs in front of the Rick Owens Store on La Brea Avenue.