Classic Boyshort
Light Absorbency
Holds up to two tampons' worth for 8 hours
Our Classic Boyshort period underwear combines style with function with a full coverage fit and our classic logo elastic waistband, full of stretch and softness.
Fits true to size. If you're in between sizes, we recommend sizing up.
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: 95% Tencel Modal, 5% Elastane
GUSSET LINING: 95% Tencel Modal, 5% 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 Classic collection of period underwear is made using award-winning, sustainable TENCEL™ Modal, sourced from renewable beech trees in Central Europe.
Modal is known for being ultra-soft, super breathable, durable, and 50% more absorbent than Cotton!
Your questions, answered.
-
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.
-
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!
-
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.
-
Our Classic Collection is made from super soft TENCEL Modal, produced by award winning sustainable heroes, Lenzing, in Austria.
Made from sustainable beech trees, through a closed loop circular process — our Classic Collection is our most soft and sustainable yet.
Shop fan favourites
Our favourite picks for the season
