Here's why:
* Feminine Gender: Nouns in French are either masculine or feminine. "Veste" is a feminine noun, meaning you would use the feminine articles "une" (a/an) or "la" (the) before it.
* Singular: "Veste" is the singular form of the word. The plural form is "vestes."
Example:
* "J'ai acheté une veste." (I bought a jacket.)
* "La veste est bleue." (The jacket is blue.)