I leaked after 2 hours on my heaviest days. I have THINX pants too and I can see no real differences between the knickers other than the THINX knickers are much more comfortable to wear. THINX do not protect me entirely on my heavy days either, but I don't expect them to as they only say they act as a back-up. However, because I don't expect them to, I don't rely on them and only wear them on my medium/light days and therefore have never leaked. Also because the crotch is wider, I don't have side-seepage.
I really wanted to like the FLUX underwear because they are a UK based company, but I found the designs to be poor; the crotch is too narrow and is also quite bulky for a medium day. If they delivered what they said and did replace 4 tampons worth then the bulk would be worth it, but they don't.
There also don't seem to be any 'standard' kind of knickers for those of us who don't like frills etc. The boy style come with a horrible tagline of FLUX all around the band, the detachable cut into my hips too much and the bikini's have a lace border. It's great to have a range, but it would be an idea to have a simple standard FLUX knicker for those of us who need comfort on our period days.
The customer service leaves a lot to be desired too. I understand that FLUX is a start-up company, but that really is no excuse for the cascade of issues I've had as a campaign backer.
i've been using these underwear for four periods and i have to say i can't believe i wore pads or tampons for so long!!! the underwear is comfortable to wear and feels and washes just like normal. i can finally go a whole night with no leaks and not have stains on my sheets when i wake up in the morning. i'm definitely converted and so happy that i no longer have to buy or use chemically charged, uncomfortable disposable tampons or sanitary towels!!!
