Breakdown of Questa giacca ha una fodera di seta pura.
una
a / an (feminine)
questo
this (masculine)
avere
to have
di
of, from
Questions & Answers about Questa giacca ha una fodera di seta pura.
Given that this lesson focuses on the preposition 'a', why do we use 'di' here for 'seta pura'?
Seta (silk) is the material the lining is made of, and in Italian, materials are introduced by di (or in). The preposition a is used for patterns, styles, or features, so you would use it for something like una giacca a righe (a striped jacket) or a fiori (a floral pattern).
Is it possible to use 'in' instead of 'di' for the material here?
Why isn't there an article before the material? (e.g., 'della seta')
When describing the material an object is made of, it acts as an uncountable category rather than a specific object, so the article is omitted. You only use the article (like della seta) if you are talking about a specific, previously mentioned batch of silk, or the silk in general as a broader subject.
Why does 'pura' come after 'seta' rather than before it?