I just bought a nice Lanvin shirt for my father = White with red and grey stripes and very thin blue stripe on the white (you see only if you look closer). I think it may be sea island or some other thin thread. Sleeves seems to be half hand sewn as you see little spot on fabrics like on a convass suit. There is a split yoke. Buttons are mother of pearl in Charvey style and sewn in an amazing way = like a M by hand I guess. Size = 40 Cuff = buttons Price was 215 euros...... If someone is interested I can sell it for 90 euros. I will take a picture that you can say me if I am wrong about the hand sewn sleeves.