Raf is right, it is the same.
I am familiar with the colour.
"royal blue" by RIT brand fabric dye.
Make sure you boil the water up to a full boil before putting your dye in.
Then put the flight suit in.
As long as the water is boiling it will dye properly.
You can season the colour to your liking as you go but make sure you don't pour the dye in the water with
The fabric your dyeing at the same time. Take the flight suit out of he water to season the colour.
Otherwise you'll end up with bright blue pepper marks on the flight suit where you sprinkled the dye into the water.
Once your done dying it to the colour you like you can always stone wash them (google for directions).
After all that airbrush on your soil marks and bam.
If you need more help feel free to message me. It's not my first rodeo.
-Matt
SL/TK 8681