De or het studentengeleding?

The correct Dutch article is:

de studentengeleding

Rule Words ending in -ing: almost always de. See the rule

How to use studentengeleding

the studentengeledingde studentengeleding
this studentengeledingdeze studentengeleding
that studentengeledingdie studentengeleding
our studentengeledingonze studentengeleding
your studentengeledingjouw studentengeleding
every studentengeledingelke studentengeleding
which studentengeleding?welke studentengeleding?
a big studentengeleding / the big studentengeledingeen grote studentengeleding, de grote studentengeleding