My Tillman 750's arrived. they're perfect. I just have to figure out how to remove the tillman logo. They go halfway up my arm. They are, however, typical welding gloves.. don't try to do fine dexterity stuff while wearing them.

Sorry I am so spammy in this community. I just really like researching for these costumes. Heh.

Anyways! Captain Hammer's gloves... the best that I can tell:
( Reference Pics )

From what I can deduce, Horrible's gloves are TIG gloves (common for welding) and they are "Tillman" brand. You can sort of see the logo on the cuff of the glove (which has likely been spray painted or fabric painted so you don't see it).

( Screen cap with the logo comparison. )