


Custom Swimwear Boxes in Water-Resistant Board
Custom swimwear boxes are slim mailers and gift boxes made in coated board that shrugs off splashes, damp doorsteps and the odd wet beach bag. Swimwear labels use them to post bikinis and swimsuits direct to customers in a box that looks as good as the collection and keeps delicate fabrics flat and clean.
- Design proofFree, approved by you before printing
- PriceCustom quote by email within one working day
- Production4–7 working days after proof approval
- DeliveryFree and tracked, UK mainland, 2–3 working days
- Misprints or damageReported within 10 days, reprinted or refunded
Why Swimwear Packaging Is Different
Swimwear is light, small and made from stretchy fabrics that crease if crushed and snag on rough edges. It is also sold almost entirely on how it looks, so the first view when the box opens matters a great deal. A bikini stuffed into a plastic bag arrives looking like a jumble of straps. The same bikini folded on tissue in a slim box looks like the photograph that sold it.
There is also the water question. Parcels sit on doorsteps in the rain, get carried through damp sorting depots and, for a summer product, often end up packed into beach bags with wet towels when customers reuse the box. Standard uncoated board softens and stains when it gets wet. A coated, water-resistant board stays firm and keeps the print clean, which is why many swimwear brands specify it.
Returns are part of the picture as well. Customers often try on several sizes and send some back, and a sturdy box that survives the first journey can carry the return in good condition too. Lingerie sold by the same label has the same needs, which is why our lingerie boxes with tissue share this construction.
Box Styles That Suit Swimwear
Most swimwear brands choose between a few formats, depending on how they sell.
- Slim roll-end tuck front mailers that go straight through the post without an outer box.
- Two-piece lid and base boxes for gift sets and premium pieces.
- Drawer boxes with a sleeve, popular for resort wear and kaftan and swimsuit bundles.
- Flat envelope-style boxes for single bikini sets and swim briefs.
- Mailers with a printed inside lid that shows a message or pattern on opening.

Often ordered by
- Swimwear labels
- Resort wear brands
- Lingerie and swim boutiques
- Children's swimwear makers
- Surf and beach shops
- Online fashion retailers
- Subscription clothing services
Popular Swimwear Boxes Sizes
Sizes are in mm. Every order is cut to your size, so any size between these rows is fine.
| Size | Often used for |
|---|---|
| Bikini mailer 220 x 160 x 40 mm | Single bikini sets and swim briefs |
| Swimsuit mailer 260 x 200 x 50 mm | One-piece swimsuits |
| Bundle mailer 300 x 230 x 70 mm | Swimsuit with cover-up or sarong |
| Gift box 280 x 220 x 60 mm | Premium sets and gift orders |
| Kids swimwear box 200 x 150 x 40 mm | Children's swimsuits and rash vests |

Not sure of the size? Send the product measurements and we work out the rest.
Styles
- Roll-end tuck front mailer
- Two-piece lid and base box
- Drawer box with sleeve
- Flat envelope box
- Mailer with returns strip
Materials
- E-flute corrugated with laminated outer
- Folding board with water-resistant coating
- Rigid greyboard with laminated wrap
- Full-colour outside print
- Full-colour inside print
- Spot colours
Finishes
- Gloss laminate
- Matt laminate
- Soft-touch laminate
- Aqueous water-resistant coating
- Foil logo
Extras
- Printed tissue paper
- Sticker seals
- Care cards
- Returns adhesive strip
- Tear-strip opening

See the board and finish guide for what each option looks like.
Production and Delivery
Production takes 4–7 working days after you approve the free design proof. Delivery to the UK mainland is free and tracked, and arrives in 2–3 working days once the order leaves production. The tracking link comes to you by email.
Reprints and Refunds
Check the order when it arrives. If anything is misprinted or damaged, report it within 10 days with a photo and we reprint or refund the items affected. Read the full returns and reprints policy.
Need it by a date?
Tell us the date with your sizes and we plan the proof and production around it.
Swimwear Boxes Specification
| Style | Roll-end tuck front mailer, Two-piece lid and base box, Drawer box with sleeve, Flat envelope box, Mailer with returns strip |
|---|---|
| Material | E-flute corrugated with laminated outer, Folding board with water-resistant coating, Rigid greyboard with laminated wrap |
| Full-colour outside print, Full-colour inside print, Spot colours | |
| Finish | Gloss laminate, Matt laminate, Soft-touch laminate, Aqueous water-resistant coating, Foil logo |
| Extras | Printed tissue paper, Sticker seals, Care cards, Returns adhesive strip, Tear-strip opening |
| Size | Made to your size in mm |
| Minimum order | Low, quoted per job |
| Price | From £0.25 a box; custom quote by email within one working day |
| Proof | Free design proof before printing |
| Production | 4–7 working days after proof approval |
| Delivery | Free tracked UK mainland delivery, 2–3 working days |
Choosing a Water-Resistant Board
There are two main approaches to water resistance. The first is a laminated finish, where a thin film is applied over the printed board, sealing the surface against splashes and giving a gloss, matt or soft-touch feel. The second is an aqueous or water-based barrier coating that repels water while keeping a more natural paper look. Both protect against rain and damp; neither makes the box waterproof if submerged.
For mailers, a lightweight E-flute corrugated board with a laminated outer gives strength and water resistance together. For gift boxes, a folding board or rigid greyboard with a laminated wrap feels more premium. Tell us how the boxes will travel, and whether they will be shipped as-is or inside an outer, and we will recommend the right board and coating.
Coated boards also resist sun cream and suntan oil marks better than raw card, which is useful for beach shops and resort boutiques where boxes are handled by customers fresh from the pool.
If you prefer a natural kraft look, a kraft board with a clear water-based coating keeps the brown paper texture while adding a degree of splash resistance. The board coatings and laminates we offer are compared on our finish page.
Sizing for Folded Swimwear
Swimwear folds small, so boxes can be slim, which keeps postage low. A bikini set folded on a piece of tissue usually fits a box only a few centimetres deep. A one-piece swimsuit needs slightly more length. If you pack a cover-up or sarong with the swimsuit, add depth rather than width so the box still fits the cheaper postal size.
Fold your largest size the way you will pack it, with tissue and any swing tags attached, then measure. Add a little room so items slide in without creasing. Many brands settle on two box sizes: a small for single pieces and a larger one for bundles and cover-ups.
Swimwear hangers, if you include them, add surprising length and a hard edge that can dent a slim box. Most brands remove them for postal orders and keep them only for gift boxes and shop stock. Our guide to measuring folded garments covers tissue and tag allowances.
Print and Unboxing for Summer Collections
Swimwear brands tend to have strong visual identities: tropical prints, sun-washed pastels, minimal monochrome, or bold block colours. The box can carry that identity outside and in. A plain coloured exterior with a small logo and a vivid printed interior is a popular approach, keeping the parcel discreet on the doorstep and saving the surprise for the opening.
Inside, a sheet of printed tissue, a sticker seal and a small card with care instructions finish the presentation. Swimwear care notes are genuinely useful to customers, since chlorine, salt and sun cream all affect fabrics, and a printed card saves them looking online. Foil logos on a matt laminate catch the light nicely in unboxing photos.
If you release new prints every season, keep the box design neutral and change only the tissue and the insert card. That way one box run lasts across several collections while each drop still feels new. Upload the seasonal print through the free proof request and we will show it on the inside lid.
Hygiene Liners and Returns
Most swimwear sold online includes a hygiene liner in the briefs and a notice asking customers to try items on over underwear. That notice can be printed inside the box lid, where customers will see it before trying anything on, which tends to reduce problem returns.
If you accept returns, a box with a second adhesive strip or a tear-strip opening lets customers reseal the same box to send items back. That saves them finding packaging and keeps returned pieces in better condition.
A small hygiene sticker sealing the tissue, printed with your logo, reassures customers that the piece has not been opened since it was packed.
Order Before the First Warm Weekend
Swimwear orders arrive in a rush when the weather turns, so the practical tip is about timing: have boxes in stock before the main launch, not when the first warm weekend empties the shelves. Fold your largest swimsuit with tissue and swing tags on, remove the hanger, and measure that bundle; it sets the small mailer, and a cover-up bundle sets the larger one. Say if the box posts on its own, because that fixes E-flute with a laminated outer rather than folding board.
Decide where the hygiene notice and care notes go, usually inside the lid, and whether a returns strip is wanted. Send the sizes, style, board and artwork, and a custom quote comes back by email within one working day, with low minimums quoted per job so a capsule collection can start small. The free proof shows the inside and outside print together. Production takes 4–7 working days after approval and tracked delivery to UK mainland addresses is free, taking 2–3 working days. Misprinted or damaged boxes reported within 10 days are reprinted or refunded. Briefs and trunks sold on their own often use the slimmer underwear boxes with a tuck lid.
Design Your Swimwear Box
Choose the swimwear boxes photo closest to what you have in mind, add your logo, drag it into place and set the size. Send it with your sizes and we reply with a custom quote and a free design proof.

Drag the logo, or select it and use the arrow keys (Shift moves faster, + and − resize).
Related Products
Other packaging that is often ordered alongside swimwear boxes.

Custom Lingerie Boxes
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Swimwear Boxes Questions
What buyers ask before ordering swimwear boxes.
Are the boxes waterproof?
They are water-resistant, not waterproof. Coated and laminated boards repel rain and splashes but are not designed to be submerged.
Can the box go through the post without an outer?
Yes. Roll-end tuck front mailers in corrugated board are built to post as they are, with a laminated outer for water resistance.
Which finish gives the best water resistance?
A laminated film gives the strongest surface protection. Aqueous coatings offer good splash resistance with a more natural paper look.
How deep should a bikini box be?
Shallow, usually a few centimetres, once the bikini is folded on tissue. A slim box keeps postage costs down.
Can I print care instructions inside the lid?
Yes. Inside lid print is a good place for care notes and the hygiene try-on notice, where customers see it before trying items on.
Do you make boxes that customers can reuse for returns?
Yes. A second adhesive strip or tear-strip opening lets customers reseal the same box for returns. Print a short line inside the lid telling them how, and fewer parcels come back in carrier bags.
Can I keep the outside plain and print the inside?
Yes. Many swimwear brands choose a discreet outside with a small logo and a bold printed interior. The inside print goes on before the laminate, so it stays as vivid as the outer.
Will the coated board still take bright colours?
Yes. Print goes on before lamination, so bright tropical colours and photographs stay vivid under the protective layer.
Should I order two box sizes?
Most brands find two sizes cover single pieces and bundles. Fold your largest items with tissue and measure to decide.
Can kids swimwear use the same design?
Yes. A smaller box in the same design keeps the brand consistent across adult and children's ranges. The 200 x 150 x 40 mm kids box in our size table shares the artwork of the bikini mailer.
When should I order before the summer launch?
Order ahead of your launch so boxes are ready before demand rises. Allow time for proofing, 4 to 7 working days of production and tracked delivery.
Get a Price for Your Swimwear Boxes
Fill in as much as you know. Sizes are in mm (internal sizes for boxes). If you have artwork, attach it; if not, a logo is enough to start the proof.
We reply with a custom quote by email within one working day, then send a free design proof before anything is printed.
- Phone+44 7578 382054
- WhatsAppMessage us
- Emailinfo@shopcustomboxes.co.uk
- HoursMonday to Friday, 9 am to 5.30 pm UK time
- OfficeOffice 704, 85 Dunstall Hill, Wolverhampton, WV6 0SR