Sometimes great design defies all logic – a fact that’s particularly true in the case of this paper briefcase from renowned Japanese industrial designer Naoto Fukasawa. From his comprehensive SIWA collections, the briefcase is able to carry loads of up to 10kgs, and is both water and rip-resistant.The genius in this briefcase lies in Naoron – a soft, flexible

material developed from wood pulp and polyolefin by family-run paper company Onao. Boasting more than 150 years of papermaking history, Onao is home to Japan’s oldest paper machine, and Fukasawa’s SIWA makes use of Naoron across a range of products including hats, slippers, wallets and envelopes. It’s paper, but tougher. We like.