What is a sweater-coat? It's essentially a cozy sweater in coat form. It has the structure and silhouette of a coat but is made of a soft knit fabric that you actually want to wear.
What is a long sweater jacket called?
Tunic cardigans are extra long and can come with or without buttons. They look just like a basic cardigan but usually come down to right above the knee, and they are usually made of materials such as knitted wool, polyester wool, or linen cotton.