It appears to have a sheen depending on how the light hits it. Jacket Width: Approximately 48cm Length: Approximately 68cm Vest Width: Approximately 43cm Length: Approximately 52cm Trousers Waist: Approximately 40cm Inseam: Approximately 62cm Color: Dark Navy All materials are: Outer: 100% Polyester Lining: 100% Polyester The quality label tag inside the trousers is coming off. The model is approximately 177cm tall, weighs 68kg, and wears 27.5cm sneakers. The jacket fits almost perfectly, and the vest is worn with considerable difficulty. It's suitable for those with a smaller chest measurement than mine. Those who usually wear size S should have no problem. Please consider this information as a reference, as it may vary depending on individual body types.