This Viking tunic is typically made in plain or twill weave, with historical replicas often using twill (specifically diamond twill or herringbone). Plain weave is the simplest and strongest weave, where warp and weft alternate evenly, resulting in a robust, smooth fabric. Twill, on the other hand, creates a particularly durable, more elastic fabric with diagonal ribs that conform better to the body and offer a characteristic, textured look typical of high-quality historical Viking textiles.