What is "sewn up"

Usage examples of "sewn up".

Her dark green skirts were sewn up on the left side to show red petticoats.

The gold cloaks dragged them both away, one to a cell to rot and the other to get sewn up by Maester Ballabar.

All of them wore Ebou Dari dresses in sober colors, with narrow plunging necklines and skirts sewn up on one side to expose layered petticoats, but only this one, bone-lean and with more white than black in her long hair, had the olive skin and dark eyes of an Ebou Dari.