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I have no problem with the shield concept, but I don't like the vertical bars.
I also not fond of that particular shirt icon. I think it's simply just because the sleeves seem a little too long.
If you tinker with the shield, and find that you could use a couple letters in there, like you'd find on most soccer logo shields ( http://tinyurl.com/yhhuh5h ), try using AGX.
As for the font, I don't have any problems with it. I've been on a "even" kick lately, so if it were me, I'd probably see how it'd look with shrinking Apparel down until it was the same with as Graf-X. I think Graf-X is the more important of the two anyways, so it may look better. But that's more of a preference call.

I agree about the shirt arms being too long.