Sepatu baru itu pas di kaki saya.

In Indonesian, adjectives usually come after the noun they describe.

• sepatu = shoes
• baru = new

So:

• sepatu baru = new shoes

This is the normal pattern:

• rumah besar = big house
• buku bagus = good book
• mobil baru = new car

So sepatu baru itu means those/the new shoes or the new shoes depending on context.

Itu often means that, but after a noun phrase it can also work a bit like the/those in English, depending on context.

In sepatu baru itu:

• sepatu = shoes
• baru = new
• itu = that/those / the specific ones being talked about

So the phrase refers to a specific pair of new shoes already known in the conversation.

Compare:

• sepatu baru = new shoes / a new pair of shoes
• sepatu baru itu = those new shoes / the new shoes

Indonesian does not have a direct equivalent of English the, so words like itu often help mark something as specific.

Indonesian often leaves out the verb to be when English would use is, am, are.

So:

• Sepatu baru itu pas di kaki saya. literally looks like:
• Those new shoes fit on my feet.

There is no need for a separate word meaning is/are here.

This is very common in Indonesian:

• Dia guru. = He/She is a teacher.
• Rumah itu besar. = That house is big.
• Saya senang. = I am happy.

So the sentence is completely normal without an Indonesian word for is.

Here pas means fit exactly, be the right size, or be just right.

So in this sentence, it means the shoes fit your feet well.

Common senses of pas include:

• just right
• exactly
• fitting properly

Examples:

• Bajunya pas. = The clothes fit well.
• Ukurannya pas. = The size is just right.
• Waktunya pas. = The timing is perfect.

In this sentence, pas is describing how the shoes feel on the feet.

Yes, di is a preposition meaning things like in, at, on, depending on context.

In pas di kaki saya, the phrase literally means something like:

• fits on my feet
• is right on my feet

This is a natural Indonesian way to express shoe fit.

Breakdown:

• di = on/at
• kaki = foot/feet
• saya = my / me

So di kaki saya means on my feet.

Even if the English translation is simply fits me or fits my feet, Indonesian often keeps the body-part phrase.

It can mean either foot or feet depending on context.

Indonesian nouns usually do not change form for singular vs. plural.

So:

• kaki = foot / feet / leg / legs, depending on context

Here, since we are talking about shoes, the natural meaning is feet.

Indonesian usually lets context do the work. If necessary, plurality can be made clearer in other ways, but often it is not needed.

In Indonesian, possession is usually shown by putting the possessor after the noun.

So:

• kaki saya = my foot / my feet
• buku saya = my book
• rumah saya = my house

This is different from English, where my comes before the noun.

So the structure is:

• kaki
  • saya
• literally: foot/feet + I/me
• natural English: my foot/feet

Yes. Saya is a normal and relatively neutral/formal way to say I / me / my.

So:

• kaki saya = my feet
• sepatu itu pas di kaki saya = those shoes fit my feet

You could also use the suffix -ku for my:

• kakiku = my foot/my feet

So a more personal or casual version could be:

• Sepatu baru itu pas di kakiku.

Both are correct. In general:

• saya sounds a bit more neutral/formal
• -ku can sound more personal, literary, or casual depending on context

Not exactly.

Both can relate to something being suitable, but they are used a bit differently.

• pas often means the right size or exactly fitting
• cocok often means suitable, matching, or compatible

For shoes, pas is especially natural when talking about physical fit.

Examples:

• Sepatu ini pas di kaki saya. = These shoes fit my feet well.
• Warna baju ini cocok untuk kamu. = This shirt color suits you.
• Mereka cocok satu sama lain. = They suit each other / They are compatible.

So for shoe size and fit, pas is the better word here.

It can be understood as either shoe or shoes, but in real usage sepatu often refers to a pair of shoes.

Indonesian does not always mark singular and plural explicitly. Context decides.

So:

• sepatu can mean a shoe, shoes, or a pair of shoes

In a sentence about wearing them, English usually translates it as shoes:

• Sepatu baru itu pas di kaki saya. = The new shoes fit my feet.

If Indonesian wants to emphasize plurality, it can sometimes use reduplication:

• sepatu-sepatu

But that would not normally be used here.

Usually pas is positive: it means the shoes fit just right, not too loose and not too tight.

If you want to say they are too tight, Indonesian would more naturally use words like:

• sempit = narrow/tight
• kekecilan = too small

Examples:

• Sepatu itu sempit di kaki saya. = The shoes are tight on my feet.
• Sepatu itu kekecilan buat saya. = The shoes are too small for me.

So pas normally means they fit well, not they are uncomfortably tight.

Yes, you could, and it would still be grammatical.

The difference is mainly specificity:

• Sepatu baru itu pas di kaki saya. = The/those new shoes fit my feet.
  
  • refers to a specific pair already known
• Sepatu baru pas di kaki saya. = New shoes fit my feet / The new shoes fit my feet
  
  • can sound a bit less specifically anchored, depending on context

In conversation, itu is very common when talking about a particular item already being discussed or pointed out.

Yes, it sounds natural.

A native speaker could say this when trying on shoes or commenting on a purchase:

• Sepatu baru itu pas di kaki saya.

It is a normal way to say the shoes fit properly. Other natural variants include:

• Sepatu baru itu ukurannya pas. = The new shoes are the right size.
• Sepatu baru itu pas banget di kaki saya. = The new shoes fit my feet really well.
• Sepatu itu muat dan pas di kaki saya. = Those shoes fit and are the right size for my feet.

So the original sentence is perfectly natural and useful.