kapjes
Kapjes is the plural form of kapje, a Dutch diminutive of kap meaning a small cap, lid, or cover. The exact meaning of kapjes depends on context, and it is a broadly used, informal term rather than a precise technical designation.
In clothing and fashion, kapjes refer to small head coverings such as baby caps, bonnet-like hats, or
In health and safety contexts, kapjes can denote face coverings or masks used to protect the wearer
In packaging and hardware, kapjes describe small protective caps or covers used to seal, insulate, or protect
Biology note: the standard Dutch term for the protein shell of a virus is kapside (singular) / kapsiden