-Makes perfect sense actually! I use a very similar jacket, the Millet Pierra Menta Hoodie underneath a Mezzalama and there are very few conditions where that layering system isn't appropriate, so I think you're on the right track. Both are awesome jackets.
-I think you nailed it with the sizing. We are similar in dimensions and that's exactly what I wear. Our entire staff is outfitted with the Mezzalama jacket and unless it's July they seem to always be in the pack.
-XS absolutely. Our waist...