A great swimsuit should last for years — not just a season. Whether it's made of nylon, spandex or another performance fabric, swimwear is exposed to some of the harshest conditions your wardrobe sees. The good news is taking care of your bathing suit is surprisingly simple, and it doesn't require harsh detergents or complicated routines. Save this guide on how to wash your favorite pieces to help preserve elasticity, color, and fit all summer long.