One day you might get to fly to the moon and when that day comes it makes sense that you've stocked up on all things silver and stylish ready for the ultimate space travel outfit. Is there life on Mars? Well, we think so as this silver-tone leather Ps11 Belt Bag from Proenza Schouler takes us to another galaxy, featuring a detachable and adjustable shoulder strap, foldover top with twist-lock closure, pyramid studs and an embossed internal logo stamp.