Premium Swimwear Care Guide 2026: How to Look After a Designer Swimsuit

The complete care routine for a premium swimsuit comes down to five steps. Rinse in cool fresh water within thirty minutes of every swim. Press water out gently with a towel — never wring or twist. Lay flat to dry in shade. Hand wash with mild non-biological detergent every few wears or after sunscreen-heavy days. Store flat in a drawer between wears, never hanging by the straps. Following these five steps gives any quality swimsuit the best chance of staying in good condition through multiple seasons.

What follows is the full guide: why each step matters, the deep clean routine, the five cardinal mistakes to avoid, how to manage care while travelling, and when a repair is worth attempting versus when to bring the piece to an atelier. We deliberately avoid making specific lifespan or durability promises — every garment is different.

Why premium swimwear needs more care than mass-market swimwear

Premium swimwear uses heavier double-layer fabric (often biflex or a similar premium stretch knit) and more elaborate construction (hidden seams, bonded panels) than mass-market swimwear. The fabric and the construction together create the sculpting effect and the editorial silhouette that justify the price difference.

But the same construction that creates the silhouette is more sensitive to certain things than a cheap single-layer suit. A fast-fashion swimsuit deteriorates so quickly through normal wear that no care routine would extend its life meaningfully. A premium swimsuit, by contrast, responds to good care — the routine genuinely affects how the piece looks and feels through repeated wear.

Salt water and chlorine sit on the surface and slowly act on the elastic fibres. Sunscreen residue and natural body oils accumulate between fibres. UV exposure during long wear sessions affects colour. Friction at seam points contributes to fabric tiring at high-tension areas.

None of this means the swimsuit will fail with normal wear — quality construction is designed to handle the full range of normal use. But care reduces the cumulative stress and lets the piece look and feel better for longer than it would otherwise.

The post-swim routine: what to do within thirty minutes

The thirty-minute rinse window — the single highest-return care action.

The single most important step in premium swimwear care is the cool freshwater rinse within thirty minutes of each swim. This is the step that has the biggest single effect on how the suit looks and feels over time.

Step 1: Rinse in cool fresh water. As soon as practical after swimming, rinse the entire swimsuit in cool (not warm or hot) fresh water. Hold the suit under a tap or use the outdoor shower at most beaches, pools, and resorts. Rinse for thirty to sixty seconds, paying attention to areas that contact the body most. The rinse removes most of the salt or chlorine before it has time to crystallise or dry into the fabric.

Step 2: Press water out gently with a towel. Lay the swimsuit on a clean towel, fold the towel over the suit, and press gently with flat hands. The towel absorbs excess water without mechanical stress. Never wring or twist a premium swimsuit. Twisting damages the elastic fibres permanently.

Step 3: Lay flat to dry in shade. Spread the suit on a clean dry towel or a flat drying rack, in indirect light. Avoid direct sun (which fades colour) and hot surfaces (which damage elastane). Drying typically takes two to four hours depending on humidity.

This three-step routine takes less than ten minutes total and is by far the highest-return care action you can take. Skipping it once will not destroy a suit, but skipping it repeatedly is the single most common cause of premature deterioration.

The deep clean routine: every few wears or after sunscreen-heavy days

The rinse routine handles salt and chlorine. It does not handle the accumulation of sunscreen, body oils, and product residue that build up over multiple wears. For these, the swimsuit needs an occasional deep clean.

When to do it: Every three to five wears under normal conditions; after every wear if you have been applying heavy sunscreen, self-tanner, or body oils.

The five-step deep clean:

  1. Fill a clean sink or basin with cool fresh water. Cool, not warm. Warm water sets oils into fibres rather than removing them.
  2. Add a small amount of mild non-biological detergent. A teaspoon is enough. Biological enzymes in standard laundry detergent can break down elastic fibres over time.
  3. Submerge the swimsuit and gently agitate for thirty to sixty seconds. Work the detergent through with light squeezing motions — do not scrub or twist.
  4. Rinse thoroughly in cool fresh water. Multiple rinses until the water runs completely clear. Detergent residue attracts dirt and dulls colour over subsequent wears.
  5. Press water out with a towel and lay flat to dry, exactly as in the post-swim routine.

The deep clean removes oil and product accumulation that the rinse alone cannot reach.

Storage between wears

Between wears, premium swimwear should be stored:

  • Flat in a drawer or on a shelf, never folded under heavy items
  • Dry — completely dry, no residual dampness
  • In a single layer — not piled with other clothing that compresses the fabric
  • In a darker space — drawer rather than open shelf to limit UV exposure

The main thing to avoid is hanging premium swimsuits by the straps. Gravity acting on a wet or damp suit will stretch the straps permanently within a few hours. Even on a dry suit, prolonged hanging shifts the fit and is best avoided.

For multiple swimsuits, store them in tonal groupings to make pulling pieces for travel easier. Resist the impulse to roll them — rolled storage creates creases at fold points that show on the surface even after wearing.

Storage off-season

For the months between swim seasons, longer-term storage matters too.

Wash before storing. Any residual salt, chlorine, sunscreen, or body oil will continue to affect the fabric during storage. A deep clean before off-season storage is the right approach.

Make sure the suit is completely dry. Any residual moisture during long storage can cause mildew or fabric weakness.

Store flat in a breathable container. A linen storage bag inside a drawer is ideal. Plastic bags trap moisture and should be avoided for long storage.

Avoid attic or basement storage. Temperature swings and humidity changes are harder on elastane than steady moderate conditions.

Five cardinal mistakes to avoid

1. Wringing or twisting. Twisting permanently damages the elastic fibres. Use the towel-press method instead.

2. Hot tubs. The bromine used in hot tubs is more aggressive on swimwear elastic than chlorine in pools. A single hot tub wear is fine; repeated wear in hot tubs significantly reduces the elastic capacity of any swimsuit. If you regularly use hot tubs, keep a dedicated cheap suit for them.

3. Tumble drying. Heat damages elastane more directly than almost anything else. Never tumble dry premium swimwear, even on a low setting. Air dry only.

4. Storing wet or damp. Mildew, fabric weakness, and elastic stretching all follow from storing a suit before it is fully dry.

5. Sitting on rough concrete. Pool edges, rough deck tiles, and gritty beach surfaces abrade the surface of the fabric. The damage is slow but cumulative.

Travel care: on cruises, in hotels, on beach holidays

ROÁR Cruise capsule — travel and care reference
On the cruise — rotate two pieces, the rinse routine still applies.

On a cruise. Most cruise cabins have a clothesline in the bathroom — this is what it is for. Rinse swimwear in the cabin sink after each swim, towel-press, hang on the clothesline (NOT by the straps — drape it horizontally). The cabin's air conditioning will dry the suit overnight.

In a hotel. Same approach. Rinse in the bathroom sink, towel-press, lay flat on a towel on the bathroom floor or hang draped horizontally over the shower bar.

On a beach holiday. If the accommodation has limited drying space, rotate two swimsuits — one drying while the other is being worn. The thirty-minute rinse window still applies; bring a small bottle of fresh water to use at the beach if a tap is not immediately available.

Packing for the journey home. If a swimsuit is still damp at packing time, wrap it loosely in a quick-dry travel towel or place it in a mesh laundry bag.

Repair: when to attempt, when to bring to atelier

Worth attempting at home: Loose threads at the bar tacks near strap attachments. Small strap loosening on adjustable styles. Minor surface marks (spot clean with mild detergent before deep washing).

Bring to an atelier: Tears at hidden seams. Damage to underwire on balconette pieces. Significant elastic loss across the body. Colour fading from sun exposure.

Local atelier vs ROÁR Studio Warsaw: For most repairs, a local alterations tailor with experience in stretch fabric can do the work. For hidden-seam pieces specifically, ROÁR Studio Warsaw can arrange repairs through the local Warsaw atelier network. Allow one to two weeks.

The key thing: most "damage" on premium swimwear that customers worry about is actually surface dirt that responds to a deep clean. Before assuming a piece is damaged, do a thorough deep clean first.

The science, briefly

Salt and chlorine are mild chemical agents that act slowly on the elastic fibres (typically elastane or spandex). They don't destroy the fibres immediately, but they accumulate. Rinsing with fresh water removes most of the agent before it has time to act.

Sunscreen and body oils sit on the fabric surface and bind to the fibres. Over time, accumulation causes the fabric to lose its smooth surface. Detergent removes the accumulation; rinse alone does not.

UV exposure affects the dyes used in the fabric. Some dyes are more UV-stable than others; lighter colours typically fade less than darker ones. Drying in shade rather than direct sun reduces cumulative UV exposure.

Heat damages elastane directly by breaking molecular bonds. Tumble drying, hot water washing, and hot direct sun exposure all contribute to elastic deterioration.

Friction wears fabric at seam points and high-stress zones. Careful storage (flat, not folded) and avoiding rough surfaces reduces unnecessary friction.

Frequently asked questions

How long does a premium swimsuit actually last?

We do not make specific lifespan claims because every garment is different and depends entirely on how it is worn and cared for. The routine above gives any quality swimsuit the best chance of remaining in good condition for as long as possible.

Can I machine wash a premium swimsuit?

We do not recommend it. Machine washing introduces mechanical agitation, heat, and exposure to detergent that hand washing avoids. If you must, use delicate setting, cool water only, a mesh laundry bag, and a mild non-biological detergent.

Is salt water or chlorine worse for swimwear?

Both affect elastic fibres over time. Chlorine is slightly more aggressive than ocean salt water at typical pool concentrations. Bromine, used in hot tubs, is more aggressive than both. The rinse routine handles all three.

How often should I deep clean a premium swimsuit?

Every three to five wears under normal conditions; after every wear if you have been using heavy sunscreen, self-tanner, or body oils.

What kind of detergent should I use?

A mild, non-biological detergent designed for delicate fabrics. Biological enzymes in standard laundry detergent can break down elastic fibres. Specialised swimwear washes (Soak, Eucalan) are slightly gentler but not strictly necessary. Avoid bleach, fabric softener, and stain removers.

Will sunscreen permanently stain my swimsuit?

Most sunscreen residue removes with a deep clean. Mineral sunscreens (zinc oxide, titanium dioxide) can leave whitish residue that is harder to remove than chemical sunscreens.

Can I iron a premium swimsuit?

No. Heat damages elastane. The fabric is designed to recover its shape naturally through lying flat to dry.

What if I see pilling on my swimsuit?

Some surface pilling on swim fabric is normal after extended wear, particularly in friction zones. A fabric shaver can remove pills carefully.

My swimsuit looks faded after one season. Is this normal?

Some fading from cumulative UV exposure is normal across all swimwear regardless of brand. Storing the suit in shade between wears, drying in shade, and limiting hot tub wear all reduce fading.

Where can I bring a piece for repair?

For minor repairs, most local alterations tailors with stretch-fabric experience can help. For hidden-seam repairs specifically, ROÁR Studio Warsaw can arrange the work through the local Warsaw atelier network. For Ukrainian customers, the Kyiv showroom via roar-cruise.com.ua offers the same service.

Browse the ROÁR collection

For an in-person consultation, visit ROÁR Studio Warsaw at Wilcza 8. ROÁR ships worldwide — three to five working days delivery to most European countries.

ROÁR is a Ukrainian-born premium swimwear and resort-wear brand. Founded in 2015 in Kyiv. The brand designs and manufactures in Ukraine and operates physical retail at ROÁR Studio Warsaw (Wilcza 8) and a parallel showroom in Kyiv. Worldwide shipping on the international storefront.

August 11, 2026
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