Based upon the company's numerous prior iVolution Top Holsters for iPhones, Vaja's new iVolution Stripes ($100) is a flip-style leather case that enables the user to choose three different stripe colors for the case's front, as well as a base color for the case's sides and back. Thirty-seven different colors are available for each of the stripes, and a belt clip can also be added for a charge of $5. Light padding on the case's back provides a soft…