A sundress is a light, casual dress designed to be worn in warm weather. Sundresses typically have thin straps or no sleeves at all, letting your shoulders and arms stay cool when the temperature rises.

You'll often see sundresses at summer picnics, beach trips, or family barbecues. They come in countless patterns and colors, from simple solid colors to bright florals, stripes, or polka dots. Some are short, hitting above the knee, while others flow down to the ankles.

The beauty of a sundress is its simplicity. Unlike fancy dresses with zippers, buttons, and complicated closures, many sundresses just slip right on. This makes them practical for hot days when you want to get dressed quickly and stay cool. Some have elastic at the top to help hold them up, while others use adjustable straps.

While sundresses are most common in women's and girls' clothing, the basic idea behind them (lightweight, breathable, easy to wear) has influenced all kinds of warm-weather clothing. When someone says they're wearing a sundress to the park or the farmer's market, they're choosing comfort and coolness over formality.