How Chlorine Damages Swimwear
Chlorine is a powerful oxidizer that breaks down the elastane (spandex or Lycra) fibers in swimwear. Over time, chlorine exposure causes swimsuits to lose their stretch, become thin and transparent, fade in color, and develop a rough texture. In Arizona, where pool season can run from April through October, swimwear takes a beating.
The longer chlorine sits on the fabric, the more damage it does. A swimsuit that is rinsed immediately after swimming will last two to three times longer than one that dries with chlorine still in the fibers.
The Post-Swim Rinse Routine
The single most important thing you can do for your swimwear is rinse it in cool, clean water immediately after leaving the pool. Do not wait until you get home. Most pools have outdoor showers; use them to rinse your suit while still wearing it, then rinse again after changing.
- Rinse in cool clean water immediately after swimming
- Gently squeeze out excess water (never wring or twist)
- Lay flat or hang in shade to dry (avoid direct sunlight)
- Never leave a wet swimsuit balled up in a bag
Proper Swimwear Washing
After every two to three wears, hand wash your swimsuit in cool water with a gentle detergent. Avoid regular laundry detergent, which can be too harsh. A gentle soap or detergent specifically formulated for swimwear or delicates is ideal. Never machine wash swimwear, as the agitation stretches the elastic fibers. Never put swimwear in the dryer.
If your swimsuit has developed a chlorine odor that rinsing alone does not remove, soak it in a solution of cool water and two tablespoons of baking soda for 30 minutes before hand washing.
Extending Swimwear Life
Rotate between two or more swimsuits to give the elastic fibers time to recover between uses. The elastane in swimwear needs at least 24 hours to return to its original shape after being stretched during wear. Applying a pre-swim chlorine protectant spray creates a barrier that reduces chlorine absorption. Store swimwear flat in a drawer rather than hanging, which can stretch the fabric. For competitive swimmers or daily pool users, expect to replace swimwear every three to four months even with perfect care.