Impossible 4537 I-1 Case Including Neckstrap & Handstrap, Black The I-1 carry case fits the cameras unique dimensions perfectly, with a molded foam interior and inner straps to keep it secure. The I-1 can be used while inside the case, with a magnetic tab at the back allowing for quick and easy access. It also comes with a detachable pouch that comfortably holds one pack of instant film plus 8 instant photos. The I-1 neck strap can be adjusted for length between 105cm and 158cm. Its made of soft black fabric, with leather trim at either end, and features the Impossible logo.