El Jimador is a product of Tequila Herradura. Though El Jimador is considered to be the companies secondary label it's popularity is well established in Mexico and has continued to rise here in the U.S. The older bottle pictured above is labeled 100% percent agave but be aware that Herradura has cut back the El Jimador label to 51% agave. This is definitely a sad commentary on the industry as Tequila Herradura had previously never made anything but 100% agave tequila.
NOTE: ( 06/2002 ) The El Jimador Blanco and Reposado currently being stocked are mixed tequila. The bottles look exactly like the 100% agave product with the phrase "100% de Agave" now noticeably absent from the label. The Internet retailers above currently list El Jimador Blanco but you can be sure it is now the mixed version, so keep that in mind.
If "100% Agave" or a similar phrase it is not designated clearly on the label it is tequila mixto.