Question about TEAM BRING IT and KNEES TO FACES t-shirt question

[The Naitch]

Fack off Wishbone, I'm not putting this in the Q&A forum, nobody goes in there, so I'm putting it here. I do what I want, when I want, so fack off. I am The Naitch and this is how I operate

Okay so The Rock has this TEAM BRING IT t-shirt with a C emcompassed in a square....



...but below is the WWE official version:



Now CM Punk has a similar shirt:



But here's the official WWE version below:



^^ The CM logo in the first example is white leterring on a black background. In the WWE version, the lettering is black on a white background.

Also The Rock has his TEAM BRING IT Underarmour version of the t-shirt:



If you look closely, the Underarmour logo is there.

When I saw Punk wearing his KNEES TO FACES shirt, it seemed like he manufactured it independently outside of the 'official WWE merchandise' banner. And The Rock is manufacturing his JUST BRING IT! t-shirt outside of the 'official WWE merchandise' banner. Only later it seems like they started making these t-shirts under the 'WWE marchandise' name.

So what is this C in a square logo that we got in The Rock's shirt? And it seems like it's kinda the same logo with the CM in a square.

I'm guessing it's a different t-shirt manufacturing company, and they decided to just make their own shirts in their spare time, and then they wear them on TV.

Only Rock and Punk are doing this, why? Sorry I sound like an idiot, I haven't slept for awhile and I'm feeling too groggy to properly get my point across. I ask for some understanding and forgiveness, please