Wish I could help you there, but I have yet to see any mass-produced armor worth the name. Most of the decent stuff is still craftsman-made, and as such expensive due to the amount of labor required. The closest thing to mass-produced armor that would hold up at all to wear I've encountered is ringmesh's chainmail, but that has a rather massive outlay to get the machinery and parts to build it, and hence is also expensive. Theoretically, you might be able to contact them and see if they run a discounted rate for wholesalers or such.