What is a "sundress"?

A sundress is a casual dress typically made from lightweight and breathable materials, such as cotton or linen, and characterized by its loose-fitting design and often bright or pastel colors. The dress is typically sleeveless or has thin straps, and falls to the knee or below. It is often worn during the summer months or in warmer climates and is a versatile piece of clothing that can be dressed up or down depending on the occasion. The sundress is a popular choice for outdoor events such as picnics, barbecues, and beach parties.