If you're trying to work out what period swimwear actually is, whether it works, and which style is right for you, this is the guide I wish existed when I started making these. I'm Danielle, founder of Eco Period, and I've spent years refining this range based on what Australian women and teens actually need in the water.
Period swimwear looks and fits like a regular swimsuit, but it has an absorbent, leak-proof layer built into the gusset. There's no insertion, no string, and nothing to manage while you're swimming. You put it on, get in the water, and it does its job quietly in the background.
Our swimwear uses layered fabric technology. The inner layer draws moisture away from your body, a middle layer holds it, and the outer layer is leak resistant so nothing shows through onto the fabric surface. It's designed to look completely normal from the outside, because that's the entire point of wearing it.
Every piece we make is PFAS-free and free from harmful chemicals, reusable and washable, and designed as a zero waste alternative to disposables. That's the baseline across the whole range, not a feature reserved for one style.
Salt and Bloom Bikini Set is our lighter option, in hot pink or black, sized 8 to 16, with UV50+ protection and absorbency up to 30ml. It suits light to moderate flow days and everyday swimming.
Racerback Pro is built with chlorine-resistant polyamide, specifically for people who swim laps regularly or spend a lot of time in a chlorinated pool. Regular chlorine exposure breaks down some fabrics over time, this one's made to handle it.
Diamondback One-Piece offers full coverage in a range of colours. It's not built for heavy chlorine exposure the way Racerback Pro is, so if you're an occasional swimmer rather than a lap swimmer, this is worth considering.
Swim Shorts pair with any bikini top for extra coverage, whether that's personal preference or just wanting a bit more coverage for the beach or a family pool day.
If you're a regular pool swimmer, start with Racerback Pro for the chlorine resistance. If you're after everyday beach and pool wear without heavy chlorine exposure, Salt and Bloom or Diamondback both work well, it comes down to whether you prefer a bikini or one-piece. If you want extra coverage over any top, Swim Shorts pair with either.
Period swimwear generally suits light through moderate flow best. On heavier days, some people pair it with a cup or tampon for extra confidence, or plan pool time around lighter days in their cycle. There's no single right approach here, it's about what makes you feel comfortable getting in the water.
Our range runs from size 8 to 16 across the adult styles, with a dedicated teen range available separately. If you're between sizes, sizing up is generally the safer call for comfort and coverage, particularly around the leg line. A snug but not tight fit through the gusset matters more than the fit anywhere else, since that's where the absorbent layer needs to sit close to your body to work properly.
Swimming in Australia usually means one of three environments: a backyard or lap pool with regular chlorine exposure, the ocean, or a mix of both depending on the season. This matters more here than in a lot of other markets, because chlorine breaks down some swimwear fabrics faster than salt water does. It's part of why we built Racerback Pro specifically for chlorine resistance rather than assuming one fabric suits every kind of swimming. If you're mostly a beach and ocean swimmer, that consideration matters less, and any of our styles will hold up well.
Rinse in cold water straight after swimming, the same way you'd rinse chlorine or salt out of any swimwear, then wash it properly when you get home rather than leaving it damp in a bag. Avoid fabric softener, since it can affect the absorbent layer over time. Air dry rather than tumble dry to help the elastic and leak-proof layer last.
If your daughter is hesitant about swimming on her period, period swimwear tends to remove a lot of the anxiety, because there's no insertion involved and it looks exactly like her regular swimwear. That matters at a public pool or on a beach day with friends where she doesn't want to explain anything to anyone.
Does it actually look like normal swimwear? Yes, the absorbent technology is built into the lining, not visible on the outside. From across the pool, nobody can tell the difference.
Can I wear it for a full day out? Yes, though on very heavy days you might want to change at some point, the same as with any period product.
Does it work in salt water as well as chlorine? Yes, both. If you're a regular pool swimmer specifically, Racerback Pro's chlorine-resistant fabric is worth choosing over the other styles.
Is it enough on its own, or do I need backup? For light to moderate days, it's enough on its own. For heavier days, plenty of people pair it with a cup for extra confidence, which is a completely reasonable approach.
Period swimwear works by looking and functioning like normal swimwear while quietly doing the job underneath. The right style depends on how often you swim, whether that's in chlorine or open water, and your flow on the day. Start with what matches how you actually swim, not the most popular option, and you'll get more wear out of it.
Danielle x
