When deciding whether a denim skirt is appropriate for work, look at your guidelines. Can you wear denim jeans to work? If your workplace doesn’t allow denim jeans, then it is not okay to wear a denim skirt.
When choosing the denim skirt for work, follow the rules you would follow for jeans in the workplace as well. They should not be distressed, torn, or old looking. Darker washes with clean seams and looking professional are the best bet for wearing any denim for work.