Leak proof panties for that time of the month?

I came across this website levoleague.com it is a wonderful site that gives career advice to women.  One of the articles that caught my attention was this What I Did With My Engineering Degree
A very motivating and inspiring story about perseverance. But that was not what caught my attention. After the first and only time that my "time of the month" snicked up on me in public, i have been wondering and even checked to see if there was an anti-leak panties for women to avoid these embarrassing moments. I also wondered how it was going to be leak proof and not be bulky like diapers. I did not find anything. So i started toying with the idea of inventing it myself(one of the many things on my to invent list). Suffice it to say Julie Sygiel  beat me to it. lol.

She is the founder of Dear Kate underwear dearkates.com  And her story on the journey to inventing this brand is very  inspiring. So i will be placing my order very soon to checkout this amazing product. Their underwear's look nice as well as practical. They ship internationally so getting it its not going to be a problem. Has anyone used this product? If so, what do you think of it?