I just spoke to the source that brought me a lot of information we have seen leaked in the last twenty four hours. I have decided to let the source tell us about the costume in their own words to better accurately describe the piece:

Daisy Ridley’s costume: The details are very general but the costume gives the idea that this character might be more comfortable in a seedy spaceport than at a gala event. The artwork shows a slender brunette figure wearing clothing with a grey and brown palette. She wears a dark blue sash at the waist that hangs down at the back and one side at about thigh level. Her shirt arms have a few utilitarian looking straps attached and it covers both midriff and chest completely. She may wear gloves and have “star wars” type wraps on the forearms. She wears a few pouches and belts. A lightsaber is clasped in her hand…

As always, these things can change or not be accurate. This is based off concept art. Like everything that has leaked in the last 24 hours, concept art can change. It doesn’t mean it was what was chosen. But this source was who brought me a lot of the information we’ve in the last 24 hours originally, so I see no reason to not take is seriously.

I imagine this stuff will be leaking in the coming weeks.

Edit:

A fan art interpretation: