Simon "Ghost" Riley

Iconic skull mask, fitted to the face, with bone white design on a black background.
Balaclava or hood underneath to fully cover head and neck.
Reinforced military tactical jacket, usually with multiple pockets and protections.
Bulletproof vest / plate carrier with magazines, radio, knife and utilities.
Black tactical gloves.
Heavy-duty combat trousers, with knee pads or reinforcement.
Heavy military boots.
Sometimes he wears a communications headset and glasses depending on the mission.

Tall, broad-shouldered, and with a very defined military build. He has an athletic and robust physique, functional musculature, not the kind you get for ridiculous selfies at the gym. Strong arms, broad back, firm posture, and precise movements. He's trained for real combat, so he looks compact, tough, and lean, without any exaggerated bulk.