I decided to give these a go when I'd worn through my Thinx undies, after four years of ownership. These pads are effective. I like the snap fast clasp system so they clip around the gusset of my undies and stay in place, avoiding leakage ruining my undies. I also like how the clasp is designed as it allows me to hang them, on a hook, in the laundry after soaking before I wash them. That they're black is great too, versus other washable pads I have that are white. Despite adequate washing and soaking - inevitably white pads always show stubborn staining. White never stays white for long, unless you use harsh products to achieve 'whiteness' which I don't like doing. So these are great. I have the regular size too.