Tunic: The tunic is simple medieval costume. It changed little over the medieval age. Two designs of tunic are shown. The first with straight sides, split below the waist and the second with a full skirt. The greater the angle between the sides of a skirted tunic , the more full the skirt will be.
A tunic can be as long as you wish, during the middle ages the length of garments was a status symbol as it showed that the wearer could afford more expensive fabric. The easiest way to make a short sleeved tunic is to fold a rectangle of fabric in half and mark the pattern on one side, then sew the sides together and hem the sleeves, neck and the bottom of the skirt. Long sleeves can be made using wider fabric or adding two rectangles of fabric where the arm will be to create the extra width. Sourced from:[Gimbo.org.uk]
With a tunic, even advanced construction is very simple. It involves two further aspects, gussets and gores.
Gussets: Gussets are squares of fabric sewn into the underarms to allow for easier arm movement.
Gores: Gores are long triangles of fabric sewn into the "skirt" part of the tunic. They make the hemline wider and allow for easier movement. Simply cutting a slit in the hem of the tunic also improves ease of movement.
See also: Garb