Why kayaness?

Discover the future of period protection with our Boyshort Menstrual Underwear. Stylish, comfortable, and sustainable, this underwear provides superior, worry-free leakproof protection. Make the switch today.


Product details

100% Recycled Polyester

95% Organic Cotton, 5% Spandex

Inner Liner:
100% Polyester (sealed inside, not in contact with skin)


Bundle Discounts

Buy any 2 underwear or tanks, save 5%.
Buy any 4 underwear or tanks, save 10%.
Buy any 6 underwear or tanks, save 15%.


Customer Reviews

Based on 8 reviews

I got the buy 4 bundle and I'm so happy I did. They are really comfortable and the padded section goes up really high in both the front and the back. Absolutely worth it.

Ana Gomez
Nice, but go a size up

First of all, I have heavy periods, to the point that even the biggest pads have leaked in the past, specially overnight. I haven't had leaks with these, which is awesome. They're comfy and soft to the touch. The seams do not bother me like some other underwear has. The only thing that is a minus is that they run a bit small. I'm usually a size medium in everything, so that's what I ordered. However, these feel a bit tight, specially around the legs. I would have gone a size up, if not for the fact that I'm in the process of losing weight, so these will hopefully fit well in a couple of months. Other than that, the shorts are nice! Some mid-waist briefs would be nice.

dion ranck
so soft!

really thick and high quality, my other period underwear brand can feel pinched or scratchy at the seams, but these are great!


Super fast shipping! They brief and the boy shorts are comfortable but run just a smidge on the smaller side. I like the seamless feel of the material in both designs without having all the extra bulk that other period underwear has. Cant wait for more colors and I will be recommending these to everyone!!! A great alternative for those switching from THINX!

Nice product!

Order arrived quickly. Love these boy shorts. Very soft and comfortable material & they worked well the days that I was able to use them. These will be a great addition to rotate into the routine next month. I only wish that I had sized up from my usual size. They fit fine and I am happy with them, but I was expecting more of a stretch/relaxed fit. Will definitely order more at some point.