Seamless Bikini Brief
Heavy Absorbency
Holds up to four tampons' worth for 12 hours.
Our heavy flow Seamless Period Pants are ultra-thin, super smooth, and truly invisible. Designed with soft, lightweight nylon, they are super stretchy, and comfortable and can be worn seamlessly under anything. The breathable fabric keeps things nice and cool, and of course, our signature built-in tech absorbs moisture and prevents leaks.
Fit true to size. Due to the high elastane content, they can feel a little tight upon first use, however, they will loosen slightly after the first few wears.
- Soft, Stretchy, and Seamless
- Lightweight and Super quick-drying
- OEKO-Tex Certified Materials
Our period-proof underwear combines cutting-edge technology with ultimate comfort. Here’s how it works:
Multi-Layer Protection: Our underwear features a unique multi-layer system designed to keep you dry and comfortable all day.
- Moisture-Wicking Layer: Quickly draws moisture away from your body to keep you feeling fresh.
- Absorbent Core: Locks in fluid, providing reliable protection against leaks.
- Leak-Resistant Barrier: Prevents any leaks, so you can move with confidence.
- Breathable Fabric: Ensures airflow to keep you cool and dry.
Machine wash max 40°C with mild detergent, hang to dry. No bleach. No tumble dry.
BODY: 80% Recycled Polyamide, 20% Elastane
GUSSET:100% Microfibre, Biodegradable TPU
Our underwear has no added PFAS, and has been successfully tested for harmful substances and certified according to STANDARD 100 by OEKO-TEX®️.
Learn more about how to care for period underwear.
UK Bound? Lucky You!
Enjoy free shipping on us, on all UK order over £30! Need it quick? Pick next day delivery at checkout.
Order before 12:00 pm GMT on a working day (that’s Monday to Friday), and we’ll send out your goodies on the same day. Talk about speedy service!
Not in the UK?
No worries! We’ve got free worldwide shipping on orders over £75. Plus, you can speed things up with express shipping options at checkout.
Returns Made Easy
Didn’t hit the jackpot with your purchase? No sweat! We’ve got your back with hassle-free returns and exchanges for 30 days. And if our products don’t live up to the hype (spoiler: they totally will!), we’ll refund you within 60 days*. Yep, we’re that confident! 🚚✨
* Try fluxies risk-free on your first order. If our undies don't work as promised, let us know within 60 days and we'll refund you. The 60-day risk-free trial applies to one worn pair of undies only.
Tried and tested by over 200,000 people worldwide
Breathable and super-soft
Experience ultimate comfort with our breathable, ultra-soft fabrics.
Reusable and washable
Wear, wash, and reuse for many years to come.
Natural all day odour-control
Stay fresh all day with our odour-neutralising fabrics.
Facts behind
Our Seamless period underwear is made using recycled nylon, made from pre consumer waste — like old water bottles and fishing nets.
So, you'll be diverting waste from landfill, while wearing light-weight, quick-drying, and super-smooth undies. Win-win!
Your questions, answered.
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Fluxies are machine-washable and reusable leak-proof underwear — providing a more sustainable alternative to single-use disposable products.
Fluxies period underwear is designed in different absorbencies, from ultra-light to super heavy. Our period pants are built to completely replace single-use disposable products, with maximum comfort in mind.
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Yes! Our period underwear can be worn alone as a complete replacement for pads, tampons or cups. With absorbencies from light to super heavy, you can find a style that suit your flow and can be worn all day, leak-free!
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You can wear fluxies period-absorbing underwear for as long as your flow will allow. Every flow is different, and the type of absorbency you choose will affect how long you can wear your fluxies for.
We do recommend you change your period underwear daily, just as you would with regular underwear.
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Our Seamless period pant collection features a seamless fit with no visible panty lines.
These period pants are super breathable, lightweight, and perfect for wearing under any outfit for ultimate discretion and comfort.
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