De or het reiskleding?

The correct Dutch article is:

de reiskleding

Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) comfortabele, functionele kleding die speciaal is ontworpen om makkelijk mee te reizen.

How to use reiskleding

the reiskledingde reiskleding
this reiskledingdeze reiskleding
that reiskledingdie reiskleding
our reiskledingonze reiskleding
your reiskledingjouw reiskleding
every reiskledingelke reiskleding
which reiskleding?welke reiskleding?
a big reiskleding / the big reiskledingeen grote reiskleding, de grote reiskleding

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).