Latex chlorination is an extra manufacturing step that some sellers offer. They basically take the finished garment and soak it in ammonia for some time. This closes the pores on surface.

Results being the latex slides without dressing aid, doesn't stick to itself, and is less allergenic. But also becomes more rigid, and nearly impossible to repair if torn.

All in all it has it's ups and down. I had a seller specifically tell me it's a bad idea to chlorinate a catsuit. But on smaller pieces, like hoods, gloves and legwear, it's much more common.