Girls School Uniform Tunic typically a tunic is a sleeveless dress that can be worn over a blouse or shirt. It often has a simple straight cut making it comfortable for everyday wear. Most tunics are made from durable fabrics like polyester cotton or a blend. The material is chosen for comfort ease of maintenance and durability. They usually fall around knee-length though this can vary depending on the school s dress code. While solid colors are common some tunics feature subtle patterns like checks or plaids depending on the school s uniform policy.