Featuring a removable strap, allowing the bag to be clutched or draped over a shoulder, this PVC/leather bag is the latest in a long history of collaborations between Porter and B Yoshida. The bag is multifunctional and plays host to an array of pockets, even a drink holder, to prevent those precious books from getting soaked. Coming in a black/black or brown/gold colorway, the unisex bag is now available from Beams.