a leather jacket
1 a piece of clothing for the upper body, worn for protection from weather -- chaqueta [ feminine, singular ]
a winter jacket una chaqueta de invierno
2 a cover on a book -- cubierta [ feminine, singular ]
He removed the jacket from the book. Sacó la cubierta del libro.
The police did not allow this, however, as the visitors were wearing red jackets.
That argument is somewhat insubstantial, even more so than the jacket that the chairman is wearing today.