Every traveller faces the problem to arrive at destination with less wrinkles as possible, no matter how long your journey.
This unisex-style lining, even placed under great preassure, ensures there are no fabric pleats created in the jacket.
Size-wise, the lining is approximately halfway between a man and a woman's shoulder size.
It is similar to a synthetic padded shirt you place under the vest and inside its sleeves to minimizes pleats.