You have probably learned that bread is a non-count noun and does not have a plural (S) form.

a banana
some bananas

-- bread
some bread

This is mostly true but there are exceptions. Consider this sentence:

There are lots of breads at the bakery.

Non-count nouns can turn into count nouns when we are talking about more than one type / kind.

In the example sentence, "breads" might refer to white bread, wheat bread, and sourdough bread.

SOME BREAD
bread

SOME BREADS
breads

SOME CHEESE
cheese

SOME CHEESES
cheeses