The sleeves are 3/4 length to close the hand up to mid forearm. For those who were not taught anatomy, the forearm refers to the part of the hand that is located between the elbow and wrist. This length of sleeve designers specially designed in order to be able to hide the fullness of hands, leaving visible only a delicate brushes.
Transformers call these models of clothing that can easily change the appearance, giving others the illusion of having other clothes more suitable to the weather or place. For example, a woman's parka with a hood can quickly turn into an elegant vest. Or short coat with short sleeves and a Muff in full-length winter coat.