[AtlUmpSteve]

As I understand the terms, the ASA uniform shirts, as well as Cliff Keen and Honigs, are teardrop mesh shirts. The ASA leisure wear shirts (most popular now is the red honoring veterans), and Officials Choice shirts are dri-mesh. The teardrop weave breathes, too, but not so much; the dri-mesh is cooler and more comfortable in hot weather.

Looking closely at the fabric, each weave is a grid of woven patterns. If the center of each pattern is circular/tear-drop shaped with multiple stitches, that is a teardrop mesh. If the center is simply a "pin hole" (my description), a much tighter pattern than the teardrop, it is dri-mesh. Again, this is just my understanding; not on the business, just an end-user like you.