Star Wars: Dawn of Darkness
A shadowsuit is a full body set of armour made from shadowsilk, a material with light absorbing qualities. The armour, which was also warn with goggles to cover the wearers eyes, as well as gloves and slippers contains no electronic components of any kind is highly difficult to detect in low light environments.
A Shadowsuit weights 3kg, costs 600 credits and allows a maximum Dex bonus of +6, while giving the wearer a +10 to Stealth checks.
Rodney Thompson, Patrick Stutzman, Ju Wiker Star Wars Roleplaying Game: The Clone Wars Campaign Guide (Seatle: Wizards of the Coast, 2009), p. 64.