How to Wash a Swimsuit

By Zach Pozniak, VP of Operations at Jeeves of Belgravia New York and fourth-generation dry cleaner · @jeeves_ny

How do I wash a swimsuit without ruining it?

The safest way to wash a swimsuit is to rinse it after every wear, then hand wash it in cool water with a small amount of gentle detergent after a few uses. Skip chlorine bleach, hot water, and the dryer, because they break down stretch fibers and fade color fast.

What is the best way to wash a swimsuit?

Swimsuits are made with elastic fibers that need gentle care. Salt water, chlorine, sunscreen, and body oils all build up on the fabric, so a quick rinse right after swimming makes a big difference.

1. Rinse immediately. Use cool fresh water as soon as you can after swimming.
2. Hand wash gently. Fill a sink or bucket with cool water and add a small squirt of mild detergent.
3. Swish, don’t scrub. Move the suit through the water with light up-and-down motions.
4. Rinse well. Remove all soap so residue does not stiffen the fabric.
5. Dry flat or hang. Let it air dry away from direct sun and heat.

How often should I wash a swimsuit?

We recommend rinsing after every use and doing a full wash after a few wears, especially if you’ve been in chlorine, salt water, or wearing sunscreen. If the suit smells, feels sticky, or looks dull, wash it sooner.

Can I put a swimsuit in the washing machine?

Sometimes, but hand washing is safer. If the care label allows machine washing, use a mesh bag, cold water, and the gentlest cycle available. Never use hot water or a heavy spin cycle, and never toss it in with towels or jeans.

What should I avoid when washing swimwear?

• Chlorine bleach: It can damage color and weaken the fabric.
• Hot water: Heat breaks down stretch and can cause fading.
• Wringing hard: Twisting can distort the shape.
• Dryer heat: This is one of the fastest ways to ruin elastic.
• Leaving sunscreen on it: Sunscreen can stain and discolor fabric over time.

What if my swimsuit has a care label with a triangle?

The triangle on a care label tells you about bleach. A plain triangle means bleach is allowed, diagonal lines mean only color-safe bleach, and an X means no bleach at all. For most swimsuits, we still recommend avoiding bleach entirely unless the label specifically allows it and you truly need it.

When should I get professional help?

If your swimsuit is expensive, heavily stained, or has already lost color or elasticity, professional cleaning advice can help prevent further damage. This is especially useful for designer swimwear, delicate linings, or suits with trims and embellishments.