Slavic appearance is a very common concept in our time. It is necessary to separate the language and racial types - these are completely different directions.
Belarusians, judging by their language, are not Slavs, they speak the Slavic-B altic language, but they have a lot of racially B alts, and those are definitely Slavs. There are also many racial types with golden hair color, and it is this trait that can be observed as unique to the purer types of possible Slavs.
Who looks like a Slav?
Slavic appearance, description: light skin, round face, blue, gray or light brown eyes, blond hair, straight but not prominent nose. The search for racial types of the Slavs is quite justified, the Cossacks retained their Nordic characteristics due to the fact that they had traditions not to marry foreigners. Also, the Orthodox are quite well preserved. In general, the word "people" already indicates homogeneity, that is, a single biological genus, or community. Slavic appearance is quite different from others.
About appearance types
If you say wheremore Slavs close to the first racial types, then these are countries such as: Poland, Ukraine and northern Russia (although there are quite a few Finno-Hungarians there, they are very similar to the B altic states, according to some scientists competent in this matter). Characteristic Ukrainian type: gorid - is a product of mixing B altic and Nordic types with Central Asian ones, due to which black hair appears. But if it comes to the fact that the skin color is a little dark, then these are already signs of the Tatars.
Some interesting facts
From some historical data it is known that the Slavs as such disappeared in the 13th century, during the invasion led by Batu. Through the rather frequent contacts of the Slavs with the B alts, Greeks, Turks, and such clashes were far from peaceful, these facts radically influenced the state of the Slavic appearance as such. Judging by some historical descriptions from the ancient Greeks, the Slavs are indeed described as tall and fair-haired, and not only fair-haired. The Slavs belong to the Indo-European branch and have a Nordic affiliation. Many conclusions can be drawn even from the analysis of the East European Plain, on which the Slavs lived. Compared to the west, the climate there was not very warm. It was closer to Scandinavia. It can also be assumed that during the winter period there was no such opportunity and desire to work hard as during the summer, early autumn or spring. Slavic appearance has no similarity with other appearances.
Such a feature of the area andnature worked wonders, so the Slavs had a very pleasant external appearance, characteristic only for them. But, unfortunately, as a result of unwanted contacts with foreigners, the Slavic appearance has lost its original unique look. As a result of such facts, we have modern formed Russians, Ukrainians, Belarusians, Poles and others.
In addition to genes, politics is also involved in all this. But, unfortunately, this issue has been very little studied to date, so you should not draw any conclusions on a specific issue, since even professionals, people who know a lot about this matter, cannot fully understand it yet. A typical Slavic appearance is still found in our time, despite many changes over the years.