Lieutenant, you have many options and ways how you could do it.
You could get black clothing - lycra suit or some sportswear and just paint it with paints or you could use thin foam to glue stripes.
Both have pros and cons.
Painting - just paint pattern with paints. It'll look good, you'll have full mobility, but with time, the paint will wear off so you'll have to repaint it. It just makes the illusion of the texture.
Adding foam - add some stripes with foam and glue them onto the suit - it might look good. It will not only make illusion but will have actual stripes and texture, but it'll decrease your mobility a lot. Thin 2-5mm foam might feel thin, but in terms of movement, it'll have a lot of impact and you will feel it, oh, and it will make you even warmer because your skin will have less room to breathe.
NOTE from my experience: never add foam in any places where your joints bend - it'll decrease your mobility, and well, you want to be able to walk or bend your elbows with ease, right?
You can also mix it. Paint the suit and add some foam in few places, like spine, etc.