[@UltimoScorp] I have no prepared imagery for the belts, really.  Think of a metallic gray metal belt that's segmented like a metal watchband, stretching and fitting into place like one, with the 'buckle' as the control center of the thing.  It's made to scan the dimensions of what it's fitting around, then has a dial to indicate larger or smaller dimensions, whereas it rescans for something bigger to surround on the person, and that is why Vekt's powersuit will even be included by the thing while he's wearing the actual belt on his person, say.