Swimsuits Parade, Sydney, Australia

Some swimmers use a specialized training suit called drag suits to artificially increase drag during practice. Drag suits are swimwear with an outer layer of looser fabric - often mesh or nylon - to increase resistance against the water and build up the swimmer's endurance. They come in a variety of styles, but most resemble a looser fitting square-cut or swim brief.
In recent years, more people are swimming for the health benefits of fitness and weight loss. The proper swimwear and googles are important for health enthusiasts, also, to prevent rashes and skin irritation.