"Every garment" or "every piece of garment"

Question

The dictionary definition of garment is

an item of clothing

Should I write every garment or every piece of garment? The second one sounds more correct to me, but it's wordier. Is the first one grammatically correct also?

An example sentence:

In the suitcase, every garment seems brand-new.

Essentially, is garment countable or not countable?

If it is countable, you can say:

three garments

if not, you have to say:

three pieces of garment

or

three articles of garment

(if piece or article isn't correct, what noun should I use instead?)

Answer 1

Garment is a countable noun:

• a piece of clothing.

I'd avoid using "a piece of garment" to indicate an article of clothing.

Ngram piece of garment vs piece of clothing.

Answer 2

"Piece of garment" is valid syntax but means (as a comment indicates) a sleeve or leg or some other fragment of a garment.

"Garment" by itself can certainly be used, in singular or plural -- it is a fairly normal countable noun.

"Clothing" is not a countable noun, and so with that word you'd use "piece of clothing".