It’s the ancestor of the T-shirt we wear today, but in its primordial shape, in a time when all clothes were based on straight pieces of fabric, before the invention of scissors 🙂
The T-shirt is totally universal: age-less, size-less, genderless – the cutting pattern is the same for all.
The same principle was used all over the world, as we can see in Ainu and Boro people of Northern Japan, in glamour kimono-s, in samurai coats, in Lebanese and Egyptian / Coptic textiles, in Shalwar-Kameez outfit as well, all over Asia.
https://en.wikipedia.org/wiki/Shalwar_kameez
Once you understand the principles, you have total freedom to tailor and ornate your shirt and express yourself the way you are.
In these images you can see Valentin, who is wearing the T-shirt he made for himself, you can see Alexandra, wearing her uncle’s T-shirt, specific for her native Teleorman. Various examples of T-shirts are displayed in most art and history museums. It’s up to each one of us to decide if we chose the basic cotton T-shirt available for 2 euro, imprinted with the logo of a brand or if we chose to wear our own identity.