Period Swim Underwear for Sailing
Period Underwear for Sailing
Long days.
Big winds.
Not your period.
Your period isn't going anywhere. But it doesn't have to be the thing you're thinking about out on the water. UnderSwim™ is built for exactly this.
of girls aged 11–16 have quit or skipped sport because of their period
Sailing is already hard.
Your period shouldn't add to it.
Long days on the water, no change facilities, often no bathroom at all, and teammates who can see everything. Sailing presents a specific set of challenges that most period products weren't built to handle.
You're in and out of the water
Pads are useless when wet. Tampons need changing every four hours and there's nowhere private to do it. Traditional period products weren't designed for an environment that's constantly wet.
Long days, no facilities
Race days can run six hours or more. On a dinghy or keelboat, there's no bathroom. No privacy. You either figure out a solution before you leave the dock, or spend the day stressed about it.
Mixed crew. No real option to talk about it.
Coaches to brief, crew to coordinate, racing to focus on. Your period isn't something you want to be managing logistics around on a start line. The solution needs to work silently.
Lycra race suits don't hide anything
Race swimwear is cut high, fits tight, and leaves nothing to the imagination. Standard period underwear bulk up or leak at the edges. You need something designed specifically for what you're wearing.
See exactly
what it does.
Sailing already has enough challenges — dodging crazy winds, long days on the water, physical demands that test you every race. Adding a period to that mix shouldn't mean spending the whole day in your head about leaking.
UnderSwim™ exists so that's not a thing you have to think about. Four tech layers. Locked in. Dry on the outside. Whatever the conditions.
"When you've got dodging crazy winds and long days on the water and you throw in your period, it can be a really tough ask."
Suddenly there's this extra thing to figure out. You might be a bit more lethargic than usual. There are cramps to manage. And then there's the worry of bleeding on the water on a long day, with no change facilities and often no bathrooms.
UnderSwim™ OG is the one for sailors — designed to sit under full-bottom swimwear, race suits, and training gear. Made for long days on the water when you need maximum protection and zero thinking about it.
Inside, four tech layers lock in your flow and keep you feeling dry. In the video, 20ml of water — the equivalent of four pads' worth — is poured in. All soaked in. No sheen. Nothing. Then add another layer over the top, and you can just concentrate on the fun stuff.
Blocks water out. Locks flow in.
That's not marketing language — it's the actual mechanism. UnderSwim™ is period-safe swimwear, not just period-tolerant swimwear.
Built for the water.
Made for race day.
UnderSwim™ OG
Higher absorbency. Designed to sit under full-bottom swimwear, one-piece race suits, or training gear. Made for race day when you want maximum protection and zero thinking about it.
-
Higher absorbency — holds 3–4 pads worth, race meet ready
-
4 tech layers — blocks water, locks flow
-
Fits under full-bottom swimwear and race suits
-
Built for long days without access to facilities
Ready to go?
Get yours here.
SOLD OUT 7x ALREADY!
UNDERSWIM PERIOD SWIM UNDERWEAR (OG)
Four layers.
Nothing gets through.
Moisture-wicking layer
Pulls flow away from your skin immediately. You feel dry within seconds.
Absorption layer
Locks flow in. Holds up to 20ml — the equivalent of four full pads.
Waterproof barrier
Water stays out. Flow stays in. The barrier works in both directions.
Soft outer layer
Sits invisibly under your swimwear. No bulk, no outline, no sheen.
20ml of liquid poured into UnderSwim™. All absorbed. No sheen, no wetness, no leakage. See the full test on the Eltee Sydney website.
You can see it
work.
Not every period product lets you watch it work. UnderSwim™ does. Pour 20ml in — that's a heavy flow day — and watch it disappear. No sheen on the surface. Nothing seeping back through.
Now put another layer on top. That's what it feels like on the water: locked in, dry on the outside, completely invisible. No thinking about it between races.
Every sailing challenge.
One answer.
No bathroom on the boat
Race days run long. UnderSwim™ holds up to 20ml — so you can sail a full session without needing to change anything.
Constant water exposure
Spray, capsize, swimming to the mark. The waterproof barrier keeps the ocean out. Your flow stays in. The two never meet.
Full-bottom race suits
UnderSwim™ OG sits under full-bottom race suits completely invisibly. Zero bulk, zero outline, zero thinking about it.
Period fatigue mid-race
You're already dealing with the mental load of sailing. UnderSwim™ removes the period management part of that equation completely.
Mixed crew, no privacy
Nothing shows. Nothing shifts. Nothing leaks at the edges. Wear it and forget it — because you've got a race to win.