You will need the overalls mesh for the superhero bodytype from
here for these to show up in your game.
Here are another 16 raver outfits for the superhero bodytype.
They are organised into 4 sets with 4 outfits in each set.
Set 9.
Set 10.
Set 11.
Set 12.
Credits:
Mesh - Marvine and Beosboxboy