Die jas was online al uitverkocht, maar in de winkel was hij nog beschikbaar.

Yes. Die jas usually means that coat/jacket.

In Dutch, die can be a demonstrative word, like that in English. It points to a specific item already known in the conversation.

• die jas = that coat/jacket
• de jas = the coat/jacket
• deze jas = this coat/jacket

So die jas suggests a particular coat the speaker and listener both have in mind.

Jas can mean either coat or jacket, depending on context. Dutch does not always make the same distinction English does.

So in this sentence, die jas could be:

• that coat
• that jacket

Both are possible unless the wider context makes it clear.

Uitverkocht means sold out.

It comes from the verb uitverkopen, which means to sell out. The form uitverkocht is the past participle, but here it works like an adjective:

• Het product is uitverkocht. = The product is sold out.
• Die jas was uitverkocht. = That coat was sold out.

You can think of it as similar to English sold out, which also behaves like an adjective in sentences like It was sold out.

Dutch main clauses follow the verb-second rule, so the finite verb was comes early in the clause. After that, adverbs and other elements often come in a fairly natural information order.

Here:

• Die jas = subject
• was = finite verb
• online = where/in what sales channel
• al = already
• uitverkocht = sold out

So:

• Die jas was online al uitverkocht.

A very natural English gloss is:

• That coat was already sold out online.

You may also hear slightly different word orders in Dutch, but this version sounds very normal.

Here al means already.

It shows that something had happened sooner than expected or before another situation.

So:

• online al uitverkocht = already sold out online

This contrasts nicely with the second half:

• nog beschikbaar = still available

So the sentence sets up a contrast:

• online: already sold out
• in the store: still available

Maar means but.

It connects two contrasting ideas:

• Die jas was online al uitverkocht
• maar in de winkel was hij nog beschikbaar

So the contrast is:

• online = no longer available
• in the store = still available

It works just like English but in this kind of sentence.

Because Dutch main clauses use verb-second word order.

If a phrase other than the subject comes first, the verb still has to stay in second position. In the second clause, in de winkel is placed first for emphasis or contrast, so the verb comes next:

• In de winkel
  • was
    • hij
      • nog beschikbaar

This is a very typical Dutch pattern.

Compare:

• Hij was nog beschikbaar in de winkel.
  = The subject comes first.

• In de winkel was hij nog beschikbaar.
  = The location is highlighted first, so the verb moves before the subject.

Both are possible, but the version in your sentence strongly emphasizes the contrast with online.

Because jas is a de-word, and de-words are normally referred to with hij in standard Dutch grammar.

So:

• de jas -> hij
• het boek -> het

That is why the sentence says:

• ... was hij nog beschikbaar

English uses it for objects, but Dutch often uses hij/zij/het depending on grammatical gender.

In everyday speech, Dutch speakers do not always follow the full traditional gender system perfectly, but for learners, de jas -> hij is a good rule here.

Here nog means still.

So:

• nog beschikbaar = still available

It suggests that the situation continues to be true at that moment.

This pairs naturally with al in the first clause:

• al uitverkocht = already sold out
• nog beschikbaar = still available

That contrast is one of the key meanings in the sentence.

Yes. Beschikbaar means available.

In this sentence, it means the coat could still be obtained in the physical store.

• beschikbaar = available
• nog beschikbaar = still available

Dutch can also use other expressions depending on context, for example:

• op voorraad = in stock
• te koop = for sale

But beschikbaar is a very common general word and works well here.

Yes, that is completely normal. Online is very commonly used in Dutch, just as in English.

So:

• online uitverkocht = sold out online

Dutch also has expressions like:

• op internet
• via de webshop
• in de online winkel

But online is short, natural, and extremely common in modern Dutch.

Because there are two separate clauses, and each clause needs its own finite verb.

Clause 1:

• Die jas was online al uitverkocht

Clause 2:

• maar in de winkel was hij nog beschikbaar

English works the same way:

• That coat was already sold out online, but in the store it was still available.

The two was forms describe two states in the past.

It is past tense because the speaker is talking about a situation that existed at some point in the past.

• was uitverkocht
• was beschikbaar

If you wanted to talk about it now, you could use the present tense:

• Die jas is online al uitverkocht, maar in de winkel is hij nog beschikbaar.

That would mean:

• That coat is already sold out online, but it is still available in the store.

So the grammar is the same; only the tense changes.

Yes, but the emphasis changes a little.

Original:

• maar in de winkel was hij nog beschikbaar

This highlights in the store as a contrast with online.

Another possible version:

• maar hij was nog beschikbaar in de winkel

This is also understandable, but it sounds a bit less contrastive. The original word order is better if you want to stress the difference between online and in the store.

Yes, there are three very useful Dutch patterns here:

1. Verb-second word order in main clauses

   • Die jas was ...
   • In de winkel was hij ...

2. The contrast between al and nog

   • al = already
   • nog = still

3. Referring back to a de-word with hij

   • de jas -> hij

So this one sentence is a great example of natural Dutch word order and common everyday vocabulary.