The WAI Memetic Diamondweave Bodysuit (matching hood, gloves, and boots sold separately) attempts to fill this obvious gap in the market. It sacrifices some of the protection offered by the much sturdier D-Fence bodysuit, trading out layers of nanoweave for synthetic spun diamond material capable of picking up light and refracting color from both the user's skin and their surroundings.
A person with no Metachrosis who wears the suit will find that it offers a fairly small passive benefit to stealth, but it's really meant to go with the nano.
A person with Metachrosis can receive the full benefit of their nanogenic on any part of their body covered by this armor as it mimics the patterning of their skin as it shifts. The armor does not confer any stealth bonus on top of Metachrosis.
The suit is designed to support Xo3 or Xo5 plating overtop of it, though the hard armor plating naturally blocks the effect anywhere they are worn as these pieces do not employ this technology.
The idea is that characters can spend big bucks to get some kinda-sorta-OK armor that won't interfere with their Metachrosis. Stacking specific pieces of Xo3 overtop of it (say a helmet, thorax, and codpiece) would allow them to fine-tune the level of protection versus stealth that they wanted, and make this nano viable for people in the big leagues.
Plus it's cool.