מיחזור טקסטיל הוא חלק מאופנה בת קיימא.

A rough pronunciation is:

mikh-zur teks-til hu khe-lek me-of-na bat ka-ya-ma

A few notes:

• ח in מיחזור is the throaty kh sound, like in German Bach or Scottish loch.
• הוא is pronounced hu.
• מאופנה sounds like me-ofna.

Because this is normal full spelling in modern Hebrew.

With vowel marks, the word is מִחזוּר. Without vowel marks, Hebrew often adds letters like י or ו to help show the vowels, so you get מיחזור.

The word comes from the root ח-ז-ר, which is related to returning/repeating. In modern Hebrew, מיחזור means recycling.

That is true in many cases, but Hebrew often uses הוא or היא as a linking word in present-tense sentences when one noun phrase is being identified with another.

Here:

• מיחזור טקסטיל = the subject
• חלק מאופנה בת קיימא = the predicate

So הוא works like English is:

• מיחזור טקסטיל הוא חלק... = Textile recycling is part...

In short: Hebrew often drops is, but in noun-to-noun statements like this, הוא is very common and natural.

Because the main subject noun is מיחזור, and מיחזור is masculine singular.

So the linking pronoun must also be masculine singular:

• מיחזור ... הוא ...

Even though אופנה is feminine, it is not the subject of the sentence. It is inside the phrase חלק מאופנה בת קיימא.

After חלק, Hebrew normally uses the preposition מ- to mean part of.

So:

• חלק מ-... = part of ...

That means:

• חלק מאופנה = part of fashion

The מ- is attached directly to the noun:

• מ + אופנה = מאופנה

This is the normal Hebrew structure. English uses of, but Hebrew uses מ- here.

Because חלק מ- is the standard and most natural Hebrew pattern for part of.

So Hebrew prefers:

• חלק מאופנה

rather than:

• חלק של אופנה

The version with של is not the usual way to express this idea.

Yes. It is a compact Hebrew noun phrase meaning something like:

• textile recycling
• recycling of textiles

Hebrew often places two nouns together to form this kind of expression, especially in formal, technical, or informational language.

So מיחזור טקסטיל is a natural short way to say the idea. A longer version with של could be understood, but the compact version is more idiomatic here.

Also, טקסטיל here is being used as a category word, like textiles/textile material, so it does not need to be plural.

בת קיימא is a fixed expression meaning sustainable, viable, or able to last/endure.

It is written as two words because it is not a regular one-word adjective. It is an established phrase.

This phrase has two forms:

• בר קיימא for masculine nouns
• בת קיימא for feminine nouns

So here, because אופנה is feminine, Hebrew uses:

• אופנה בת קיימא = sustainable fashion

Because בת קיימא is the idiomatic expression for sustainable in this kind of context.

Although קיים / קיימת means existing or in existence, it does not usually mean sustainable by itself.

So:

• אופנה בת קיימא = natural and correct for sustainable fashion
• אופנה קיימת would mean something more like fashion that exists, not sustainable fashion

Because the sentence is making a general statement, not talking about one specific, already-known item.

So Hebrew uses indefinite/generic nouns:

• מיחזור טקסטיל = textile recycling in general
• אופנה בת קיימא = sustainable fashion in general

If you added ה, it would usually sound more specific, like you were talking about a particular recycling process or a particular kind of fashion already identified in the conversation.