Wearing a leather jacket in the office requires balancing your personal style with the dress code expectations of your workplace. In a smart casual office, where neat but comfortable attire is allowed, a leather jacket can be paired with shirts, fine knitwear, and simple trousers. In environments with a formal dress code, always prioritize the institution's rules.
Base your outfit on the jacket's details
The zipper, pocket, and collar design affect the jacket's appearance. If you're aiming for a simpler business outfit, consider the jacket's details alongside the pattern of the shirt you'll wear underneath. A plain colored shirt or knit top with a jacket that has prominent zippers can prevent the look from becoming too busy.
Start with your existing wardrobe for color selection. If you have black, gray, or navy trousers, consider the jacket in conjunction with these pieces. It's more practical to achieve harmony with your existing clothes rather than building a separate work wardrobe.
A tidier look with a shirt
You can start with a light blue shirt, charcoal trousers, and a black leather jacket. Make sure the shirt collar doesn't get bunched up under the jacket collar. Tucking the shirt into your trousers makes it easier to tidy up hemlines, especially with shorter jackets.
For shoes, you can choose a simple loafer or a lace-up model. Determine the formality level of your shoes according to the office; the same outfit can look more casual or more polished with different shoes.

A more comfortable alternative with knitwear
Opt for a thin, plain colored knit top instead of a shirt. A gray knit top, dark trousers, and a navy jacket can create a calm look with similar tones. When choosing the collar of the knitwear, also check how it looks when the jacket is closed. Thick overlapping collars can create unnecessary bulk around the neck.
Consider all-day use
If you're going to take off your jacket once you arrive at the office, the outfit underneath should also look complete on its own. Check the harmony of your trousers, top, and shoes without the jacket. If you'll be wearing the jacket while sitting at your desk, try out elbow and shoulder movements; don't just decide based on how it looks when standing.
Can jeans be worn in an office outfit?
This depends on your workplace's dress code. In an environment where jeans are acceptable, a plain, simple-looking model can be tried. Since dress expectations might change on an important meeting day, don't generalize everyday comfort to all situations.
You can consider the grey zipper-detailed leather jacket with the shirts and trousers in your wardrobe. For different usage environments, you can also get ideas from the genuine leather outfit guide.