Period Underwear
Period Underwear - Because We Bleed
Stop relying on expensive and wasteful disposables and switch to beautiful, reusable, and comfortable period underwear. Whether you have a light flow or a heavy period flow, we’ve designed protection that’s there for you throughout your entire cycle. Knix Period Underwear is made with 3 layers that work together: 1. The anti-odor top layer wicks away moisture from your skin 2. The inner-layer absorbs the liquid and locks it in 3. The leak resistant outer layer keeps any liquid from spotting your clothes.
Sweat and Pee Proof Period Underwear
Did you know that 1-in-4 women experience light bladder leaks? At any stage of your cycle, Knix period underwear will also absorb sweat and pee. Indeed, our period underwear absorbs anywhere between 1 and 8 teaspoons of any liquid, depending on the style. So whether it’s blood, sweat or pee, our moisture-wicking, anti-odor and quick dry technology keeps you feeling protected. helps you get back to enjoying life. Plus, seamless design makes them invisible under leggings. Win, win!
How Does Period Underwear Work?
We get it: It’s hard to imagine a pair of underwear offering protection on your heavy flow days. After all, we’ve all experienced leaks when using disposable products. The magic is in the construction: Knix period underwear features triple layer technology that ensures you stay fresh, dry, and protected.
Leakproof Period Underwear FAQs
Save 10% on 3-4 pairs of Any Underwear
Save 15% on 5-6 pairs of Any Underwear
Save 20% on 7+ pairs of Any Underwear
(excludes Last Call & Sale items and Pre-discounted Kits)
Super Absorbency
A total replacement for disposable period products - absorbs approximately 8-12 tsp, 40-59-ml, or the equivalent of 8-12 regular tampons worth of liquid.
High Absorbency
Ready to stop leaks whenever - absorbs approximately 4-6 tsp, 20-30 ml, or the equivalent of 4-6 tampons worth of liquid.
Medium Absorbency
Confident backup protection for heaviest days - absorbs approximately 3 tsp, 15 ml, or the equivalent of 2 tampons worth of liquid.
Light Absorbency
Protection for your lighter days - absorbs approximately 1 tsp, 5 ml, or the equivalent of 1 tampons worth of liquid.
Our Leakproof period underwear features triple layer technology that ensures you stay fresh, dry, and protected. The anti-odor top layer wicks away moisture from your skin; the inner-layer absorbs the liquid and locks it in; and the leak resistant outer layer keeps any liquid from spotting your clothes.
Depending on the size and style of underwear, the leakproof gusset ranges from around 7.5" to 9" long. Our Super Leakproof Underwear features a 25% bigger gusset, with more of the coverage in the front of the underwear. For overnight leakproof protection, our Super Leakproof Dream Short gusset ranges from 10" to 14" long.
Our Leakproof Period Underwear feature barely-there built-in panty liners that can absorb between 1 and 20 tampons worth of liquid, providing you with confident protection against period leaks, light bladder leaks, and sweat.
Our Essential Underwear feature a moisture-wicking breathable gusset that keeps sweat and odor away, but they do not provide any leakproof protection.
Depending on the level of absorbency of Leakproof period underwear you choose and the heaviness of your flow, you can wear our period panties on their own or as backup protection along with a menstrual cup or tampon.
You're totally protected with our high and super absorbency Leakproof underwear, while our low and medium absorbency Leakproof underwear can replace pads and tampons on lighter days and work great as a backup for your usual period protection on heavier days.