Black denim is, in my view, such a flexible clothing Block Because it reflects the working class hard labor, the pedigree of traditional blue jeans when black denim is used to create a couple of jeans. Black denim means a lot of class and formality making it a valid choice from play to job to formality for just about any social environment or opportunity. My general rule when I think of black denim is that I want it to be black as night, no whiskers, sanding, acid washing, or any other highlighting or distressing. No more colors, only paint it black. There are exceptions, of course, with any rule. In this case, if you're a struggling artist/musician, the exception is distressed rips or tears.
Style as per Occasion
I discovered skinny jeans working on just about any other casual case than a job. I generally couple them with a weather-dependent t-shirt, polo shirt, sweater, or hoodie and layer. Once we begin speaking about job settings, what is acceptable can vary dramatically depending on the nature of the job, the employer, and any related codes of dress. Jobs at the entrance stage that are not facing the client can be completely fine with skinny and distressed skinny jeans. They may even be acceptable to those whose clientele is young or student in customer-facing roles.
How to style your Black Jeans
I've discovered slim and slim-straight styles to work in "most" other job circumstances, whether you're working in a silicon alley, a retail outlet, production, backroom office help, graphic arts, IT, or R&D just to name a few. A large exception is sales where you have to dress as your client dresses most probably. They are generally accompanied by a sweater and/or a collared shirt (dress or polo), irrespective of the jeans, and may or may not be tucked into the jeans. It can be difficult for formal circumstances like dinners, theatre, weddings, and funerals. Let your understanding of your fellow members guide your decision when attending such an opportunity. I tend to lean towards relaxed jean styles for such occasions.