Hey, I've got this idea, no way i'm gonna find a propper name tho.
"So, you got those people, fonds of tracksuits and electronics. They live in abandonned public housing blocks they call "Condos" , managing to somehow get running water, telecoms and energy by rerouting existing grids near them.
For transportation, they exclusively use mopeds, cross bikes, or, more rarely sports motorbike (wich is like an holy grail for them)
They wear almost only tracksuits.
They defend themselves with blades (cleavers, stilettos, wakizashi, you name it.)
Also, electronics are a reigion for them, especially vintage ones, old cellphones, old radios, old computers… They want them all, with time, they acquired extensive knowledge about them, and can repair those antique rigs.
Picture that, image 3 highrise public housing towers, in a very vetust state (holes, damaged concrete, moss slowly taking over the place) electric cables from a nearby power station supplies the three condos with electricity, but mostly only for power-requiring devices, from the derelict windows, you can see the light from fires used as light sources and heat supply.
At the feets of the main tower, a group of teenagers wearing old tracksuits are smoking cigs, while sitting on their motorbikes, as you progress in the staircase, you stumble in a large room, this used to be a flat, but most walls have been destroyed, making a large single room. In a corner, you see a old TV hooked to a Panasonic VHS player, on the TV the movie "Cyborg" is playing, on the opposite of the room, a fire made on the concret ground and alimened by salvaged wood is heating. This is an ordinary night in the condo.