We know that they are intended to be positioned completely or partially on your head, but there are 2 basic models into which we can divide them: those that come in the form of scarves and those that take on a more beanie-like shape.
Scarf. Scarves don't usually take the shape of a turban until you create it, so they can be a bit tricky to put on, depending on what the wearer wants to achieve. They can be medium or long in length.
Since they are a fragment of fabric and will adapt to what the wearer wants, it is up to the wearer to decide whether the head covering will be partial (showing a bit of skin or hair) or complete (covering the whole head). For the same reason, they do not usually have elastic.
Cap. Turbans in the form of a cap already have a specific or semi-fabricated shape, so you don't have to put anything together and it will be much easier to put it on. This is perfect for those people who do not have previous knowledge to make shapes with them.
These can cover a partial shape of your head or cover it completely, but it will depend directly on the model you choose and it is something that will remain the same. Some models include elastic for better fixation and to avoid slipping.