[{"id":261378211915,"handle":"best-selling-collection","title":"Best selling products","updated_at":"2022-08-08T18:05:27+01:00","body_html":null,"published_at":"2021-06-04T13:53:54+01:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":264969060427,"handle":"leakfree-swim","updated_at":"2022-08-08T17:11:28+01:00","published_at":"2022-06-30T16:14:56+01:00","sort_order":"best-selling","template_suffix":"","published_scope":"web","title":"Leakfree Swim","body_html":""},{"id":260527456331,"handle":"newest-products","title":"New Arrivals","updated_at":"2022-08-08T18:05:27+01:00","body_html":"","published_at":"2021-03-05T16:00:51+00:00","sort_order":"created-desc","template_suffix":"","disjunctive":true,"rules":[{"column":"title","relation":"contains","condition":"Newest"},{"column":"title","relation":"not_contains","condition":"Newest"},{"column":"title","relation":"not_contains","condition":"Mix \u0026 Match"}],"published_scope":"web"},{"id":261378179147,"handle":"new-collection","title":"New products","updated_at":"2022-08-08T18:05:27+01:00","body_html":null,"published_at":"2021-06-04T13:53:53+01:00","sort_order":"created-desc","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":261221711947,"handle":"period-pants","updated_at":"2022-08-08T18:05:27+01:00","published_at":"2021-05-18T13:39:44+01:00","sort_order":"best-selling","template_suffix":"","published_scope":"web","title":"Shop All Period Pants","body_html":"\u003ch2 style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003ePeriod Pants: Why Choose FLUX Undies?\u003c\/h2\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003eWhen you choose to buy period pants from FLUX Undies, you won’t just be getting a new set of super comfy underwear to slip into whenever you feel your period coming. You’ll be getting a sustainably made, environmentally-friendly purchase that’ll even save you money in the long run. One pair of our period-proof panties is designed to be worn for up to 12 hours a day and will last for up to three years, so think of how much you’ll be giving back, both to your budget and to the world.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003eNot only will you be reducing your waste by as much as 99.5%, but you’ll also be getting involved in our donation scheme ‒ for every pair you buy, we’ll provide a reusable period pad for a girl who needs one. We also believe in empowering the people who work with us, as well as our customers, so you can feel confident knowing your favourite pairs of period panties have come from factories with ethical working practices. Change your life, every month. \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003eWe know that making the switch can be difficult at first, which is why we’d suggest trying your new period panties out at home before replacing your current products completely. You could be changing your life with a new set of super absorbent, fully washable period undies made by us, so why not take a look at the styles we offer and see what you think? Buy a pair or two to get you started and pass the days of your period in clean, comfortable, and completely sustainable style! Delivery across the UK and worldwide.\u003c\/div\u003e"},{"id":265117597771,"handle":"updated-images","updated_at":"2022-08-08T18:05:27+01:00","published_at":"2022-07-15T02:19:27+01:00","sort_order":"best-selling","template_suffix":"","published_scope":"web","title":"Updated images","body_html":""}]
Say hello to our new leak-free Bikini — a swim staple with discreet added leak-proof protection. Made with the same reliable built-in tech used across our period underwear range, so you can feel confident that you’ll stay leak-free. Our new water-resistant outer material allows water to simply roll off, keeping you fresh and dry all day long, whether you’re going for a dip or simply laying poolside.
Full coverage across the bum and stomach keeps you feeling covered whilst our built-in tech makes sure you're protected all day long. Great for a moderate flow — absorbs the same amount as approximately three tampons worth.
Our new Swim range uses recycled nylon, made from waste like water bottles and fishing nets. 5% of all profits from our Swim collection will go to The Ocean Cleanup, who work to clear plastic from our rivers and oceans.
We offer free shipping on all UK orders and free tracked shipping on International orders over £75.
For same-day dispatch and next day delivery, please place your order before 1pm.
All orders are dispatched from our UK warehouse using trusted couriers such as Royal Mail, DHL and DPD.
Delivery options
UK
DPD Next Day Delivery Service
Next day service, shipped by DPD tracked, £6.95
Royal Mail 1st Class Delivery Service
1-2 days, shipped by Royal Mail tracked, £4.95
FREE Standard Shipping Service
2-3 days, shipped by Royal Mail untracked
EU
*Free standard shipping is offered on all EU orders above £75
Express Tracked Shipping Service
1-2 days, tracked and signed, £14.95
Tracked Shipping Service under £75
3-5 days, tracked, £9.95
FREE Tracked Shipping Service under £75
3-5 days, tracked
USA & Canada
*Free standard shipping is offered on all International orders above £75
Express Tracked Shipping Service
1-3 days, tracked and signed, £19.95
Tracked Shipping Service for orders under £75
5-7 days, tracked, £11.95
FREE Tracked Shipping Service for orders over £75
5-7 days, tracked
Rest of world
*Free standard shipping is offered on all International orders above £75
Express Tracked Shipping Service
1-4 days, tracked and signed, £19.95
Tracked Shipping Service for orders under £75
5-7 days, tracked, £14.95
FREE Tracked Shipping Service for orders over £75
5-7 days, tracked
Think our period pants sound too good to be true? Take them on a risk-free trial for 60 days!
If our undies don't work as promised, let us know within 60 days and we'll refund you, no questions asked. The 60-day risk free trial applies to one worn pair of undies only. Refunds will be paid to the original payment method that was used to place the order.
🚿 Rinse after use.
🧽 Machine wash on 30-40 degrees.
🍃Hang to dry or dry indoors on a radiator.
⚠️ Do not use fabric softener or bleach. No tumble drying.
And that's it! Your FLUX Undies are ready to wear again!
All day protection
Our leak-free swimwear is made from clever fabric that stops water from getting inside, keeping our built-in absorbent tech separate from the water and ready to absorb life's leaks.
Perfect for a quick dip, a long swim, or simply relaxing poolside.
Old water bottles look good on you
Our new Swim range uses recycled nylon, made from waste like water bottles and fishing nets. 5% of all profits from our Swim collection will go to The Ocean Cleanup, who work to clear plastic from our rivers and oceans.
Absorbs your worries
Leakfree Swim Bikini absorbs a moderate flow, locking in blood or incontinence leaks, keeping you dry for up to 8 hours.
60 day money back guarantee60 day money back guarantee60 day money back guarantee60 day money back guarantee