JR Hill & Co. today introduced the Sleeve for Apple’s iPod, which was “designed to be a simple yet stylish leather case for the iPod,” according to the company. The sleeve is made of full grain leather, and offers a detachable belt clip, nylon elastic sides, and a small strap on top to prevent the iPod from slipping out and also covers the FireWire port opening on older iPods without the plastic plug. The new Sleeve will fit the 5, 10 and 20 GB versions of the iPod, and is available now for US$39.99.