Tøjet, der stadig er pænt, vil jeg donere til en genbrugsbutik i nærheden.

Because Danish main clauses follow the V2 rule: the finite verb must come in the second position.

Here, Tøjet, der stadig er pænt is moved to the front for emphasis or topic. Once that whole phrase is in first position, vil must come second, and jeg comes after it:

• Tøjet, der stadig er pænt, vil jeg donere ...
• more neutral: Jeg vil donere tøjet, der stadig er pænt, ...

So the fronting gives extra focus to the clothes.

Here der is a relative pronoun, meaning something like that/which. It does not mean there.

In this sentence, der is the subject of the relative clause:

• der stadig er pænt = that is still nice

When the relative pronoun is the subject, der is very common and natural in Danish. You may sometimes see som in other relative clauses, but der is the normal choice here.

Because this is a subordinate clause, and Danish subordinate clauses usually place sentence adverbs like stadig, ikke, ofte, etc. before the finite verb.

So:

• main clause: Tøjet er stadig pænt
• subordinate clause: tøjet, der stadig er pænt

That word order difference is very common in Danish.

Because pæn has to agree with tøj, and tøj is grammatically neuter singular.

After er, Danish adjectives still show agreement:

• en bil er pæn
• et hus er pænt
• skoene er pæne

So:

• tøjet er pænt

Even though tøj means clothes/clothing, grammatically it behaves like a singular neuter noun.

Tøj is usually a mass noun in Danish, like clothing in English. It refers to clothes as a category or collection, not as separate countable items.

So:

• tøj = clothes/clothing in general
• tøjet = the clothes / the clothing

The -et ending is the definite form. Danish often adds the definite article to the end of the noun instead of using a separate word.

It can suggest both future intention and willingness/intention.

In this sentence, vil jeg donere most naturally means:

• I will donate
• I intend to donate

So it is not just a pure future marker in the English sense; it also carries the idea of intention.

It is a compound noun:

• genbrug = reuse / recycling / second-hand use
• butik = shop/store

So genbrugsbutik literally means something like reuse shop, and in natural English it is usually thrift store, charity shop, or second-hand shop, depending on context.

Because Danish normally writes compound nouns as a single word.

This is extremely common in Danish:

• togstation
• sommerhus
• arbejdsdag
• genbrugsbutik

A good rule is: if English might write a noun phrase like recycling shop or thrift store, Danish will often turn it into one compound word.

Because the last part of the compound, butik, determines the gender.

Since it is:

• en butik

it must also be:

• en genbrugsbutik

That is how Danish compounds work: the final noun is the head noun, and its gender controls the whole compound.

i nærheden is a very common fixed expression meaning nearby or in the vicinity.

So:

• en genbrugsbutik i nærheden = a thrift store nearby

Literally, it means in the vicinity. Danish often uses this phrase where English would simply use nearby.

Because der stadig er pænt is a relative clause inserted into the noun phrase Tøjet ....

The commas show where that inserted clause begins and ends.

Also, Danish comma rules are not exactly the same as English ones. In Danish, commas around relative clauses are often more rule-based, and they do not always signal the same strong distinction between restrictive and non-restrictive clauses that English learners may expect.

So the commas here are normal Danish punctuation.

It is correct and understandable, but in everyday Danish many speakers might more naturally say:

• aflevere til en genbrugsbutik
• give til en genbrugsbutik

Donere can sound a bit more formal or deliberate, as if you are making a donation. So it works, but it is slightly more formal than everyday speech.