Inspiration for the Radix One Slim Wallet came from a surprising visit to the chiropractor where designer Arthur Wu learned his fat old wallet was causing a slight tilt in his pelvis, contributing to lower back pain. The resulting design is fairly simple, consisting of a silicone band wrapped around two polycarbonate parts to sandwich credit cards and IDs in the middle. Rather than elastic bands that lose their stretch, the silicone band maintains its memory to ensure cards a