One of the Cardinals' near-miss pitching projects (career ERA, 3.17), all other photos I've seen of him, influding a pair of Topps Vault images, show him wearing the double knits that the Cardinals began wearing at the start of the 1971 season.
Not sure if they were still using the old button-up jerseys in spring training of that year, or if this dates back to 1970, but here is a team-issued photo of Stripling in the old-school jersey.
 Thanks to the Lexibell files.