Cross-country ski clothing for him
The second layer should be worn over the thermal t-shirt, to be worn if the temperatures are particularly cold. It's actually an intermediate layer, which has the task of acting as a shield between your body and the freezing air.
For men, a garment like the Apex Jersey is an excellent example: designed for the PyeongChang Olympics in partnership with the Italian national team, it's the upper part of the racing suit. On the chest, sleeves and sides it's made of a special fabric called Schoeller® which provides muscle support, while the back has a mesh panel to be breathable. In mild temperatures, it can also be used on its own, directly in contact with the skin. It's also used by our own Federico "Chicco" Pellegrino, a cross-country skiing world champion who was also recently victorious at the sprint race in Davos.
Finally you have the third layer, usually a jacket (provided it's breathable), which has the daunting task of protecting you from external agents such as wind, rain and snow.
Sportful has come up with the idea of combining these two layers in a single garment, the Squadra Jacket, a lightweight men's windproof jacket suitable for intense skiing. This jacket is equipped witf a Gore-Tex Infinium™ Windstopper® membrane on the front, sides, sleeves and shoulders and breathable fabric on the back.
However, if you're looking for a racing garment, we advise you to take a look at the Apex Vest, to be worn over a racing suit or the Apex Jersey when the weather is colder and windier, or as a second layer for top-level athletes.
The legs and neck must obviously also be covered: for the former we recommend the Squadra Tight, suitable for different levels of training intensity, or for those who want a specialist garment as opposed to an extreme one. Instead, you could protect your head from the cold by opting for a race hat such as the Squadra Hat, in stretch and lined fabric.