The functional shirt is ideal for skiing, the material is rather thin, but also not totally thin. I wear normal "M" or 48, I have the shirt exchanged for size 50 (because it sat like a tight compression shirt, what it should not be too loud photo) and now it is sitting exactly. For those who prefer a little further ordered 2 sizes larger. For color: it looks in the photo like dark gray, but also goes into some bluish (whatever is the color "Caviale" to have found nothing exact).