Sunglasses

Sunglasses(サングラス Sangurasu?) are a special pair of sunglasses worn by Knuckles the Echidna. The shades are light blue with a silver frame and is optional to obtain in Sonic Adventure 2. When Knuckles wears these sunglasses, he is able to see and interact with invisible items. In the game, he will automatically take them off whenever he jumps.