Care should be taken to order enough material as velour is very dye lot sensitive. One dye lot may not match another dye lot of the same color. This applies even to black. There is some confusion on the difference between the two fabrics as they are very similar. They both have a brushed matte finish and look the same from the audience.
Commando is a heavier fabric that no light can get through.
Duvetyne is a little bit lighter and will allow pinholes of light to show through if there is a very high concentration of light behind it.