Two of the most popular swimsuit design options for young girls are one-pieces and bikinis. One-pieces are swimsuits that cover the upper and lower torso with one piece. Bikinis are two-piece suits that cover the upper and lower torso but not the stomach.
Another option is a tankini, which is a two-piece swimsuit where the top is long enough to cover the stomach. For a very young girl, a one-piece suit might be the most appropriate option; it also offers the most protection from the sun. A popular feature of numerous types of swimsuits for young girls is bright colors and vibrant graphics.