2024 rules reference for Glamoured Studded Leather.
Armor (Studded Leather Armor)
While wearing this armor, you gain a +1 bonus to Armor Class. You can also take a Bonus Action tocause the armor to assume the appearance of a normal set of clothing or some other kind of armor. You decide what it looks like-including color, style, and accessories-but the armor retains its normal bulk and weight. The illusory appearance lasts until you use this property again or doff the armor.