The jean worn by world champions. For more than 50 years, Wrangler has been known for the 13MWZ. It's the Official ProRodeo Competition jean and it's a Western staple in closets across the country. Can't have too many pairs. Official Pro-Rodeo Competition Jean, Original fit, Authentic five pocket styling, Flat copper rivets, Sanforized, 100% cotton, heavyweight denim.