I haven’t used the undies as my main period management method. I have used a menstrual disc, but I got some undies as back up. I only got two but I liked them so much I got two more! They’re comfy and soft plus a real weight off my mind if something goes wrong with the disc.

I ordered 3 pairs, only received 2. Although I have been told twice that the 3rd pair is on it's way I have still yet to receive it.

I have two pairs of these - for lighter and heavier days. I'd been using tampons for about 30 years and pads a few years but I didn't like the waste they produced, so I decided to try the knickers as I'd heard good things. I have had them a few months now so I can properly review them. While it's great that they are environmentally friendly and you don't have to worry about getting caught short if your period starts suddenly with no warning as often happens with me as I have no cramps or other signs that it's coming, there are significant downsides.

Both pairs are stained with the lighter pair becoming stained in the first use. I had them on for around 4-6 hours (light bleeding at the start of my period) and they had what appears to be a reddish ammonia/bleach stain from the blood. I was trying to limit the time I was wearing them to 4 hours, which was really impractical so that the second pair wouldn't do the same, but they became stained when I wore them on the second period after after buying them. I also felt like I was leaking all the time, although I wasn't, but it was quite an uncomfortable feeling. I'd occasionally experience that with pads, but only when they needed to be changed.

Regarding fit, while they both fit perfectly around the waist, they cut into my thighs (presumably to prevent leakage), which is much more pronounced when I'm cycling to the point of serious chafing, so much that I couldn't cycle for 4 days after wearing them.

A much more serious downside to the knickers was that I was out cycling for an hour with them on and my vagina around the vulva and labia was burned due to the acid. The burning was almost instant. It was minor at first but by my third (my last) period this became more pronounced until the last time I wore them cycling where it caused so much pain that I couldn't walk properly for over a week. Now this might be the case if I wore towels as well, I don't know as I'd never worn pads when cycling, but I did find that I had some burning issues with them in a previous period when I wasn't cycling, although it was only a small niggle at first. I thought perhaps I just had to adjust to them, but this has gradually worsened with each wear. I put them on once during the period I'm currently on, for an hour or so when I started spotting, and had to take them off. I actually left my work three days ago and went home to change out of them, they were so uncomfortable.

While the idea is great in theory - I wanted to love them - in practice they're just not suitable, for me at least. The downside is that I now have two pairs of knickers, both 'bleach' stained, which I can't give away, so they are an expensive and dreadful waste. I don't really want to post pictures of my stained knickers here, but can do so if asked on a review of the heavier pair.

Great product. Much better than disposable pads. stay dry, no smell, very comfortable and easy to clean. I won’t look back and will buy more.