Capable of absorbing up to 40 ml of any kind of liquid (period blood, sweat, bladder leaks, you name it), you'll be able to ditch disposables like pads, tampons, and incontinence products for good. Before you grab your measuring cup from the kitchen, 40 mL is the equivalent hold of 8 regular tampons.

Period underwear is meant to protect you all day and can be worn for at least 8-12 hours, but it's a good idea to swap it out after that if it's their primary protection. At the end of the day, how often they should change their period underwear depends entirely on what they're comfortable with.

With the need to celebrate body diversity in mind, apparel brand Knix and newly-appointed global brand ambassador Ashley Graham have launched the exclusive Ashley Graham x Knix collection.

Do I need to wear Reusable Pads with Leakproof Underwear? You don't have to but you can. Our pads are designed to be worn with regular underwear but on really heavy days we like to pair them with period undies for more convenient changing.

A few specifics of note: Knix designed this leakproof underwear to absorb up to 3 teaspoons of liquid (for reference, the average pad and tampon absorb about 1 teaspoon). And while I've tried my fair share of period-friendly underwear, these earn the top prize for their streamlined design and odor-wicking fabric.

Wondering about investing in a pair of period pants, and want to know about all the different ways you can use them? Then look no further! You can wear period underwear overnight to feel secure while sleeping, or even to feel comfortable while exercising on your period.

You don't have to but you can. Our pads are designed to be worn with regular underwear but on really heavy days we like to pair them with period undies for more convenient changing. When the pad is full, remove it and wear your Leakproof or Super Leakproof Underwear alone for the rest of the day.

Are Knix Period Underwear Worth It? Knix Period Underwear is a great find for those consumers that need and/or want a little bit more protection than traditional underwear provides. All of their underwear gives at least some moisture control and support.

Joanna Griffiths is the Founder and President of Knix and Kt by Knix the direct-to-consumer intimate apparel brands reinventing intimates for real life.

Knix provides leakproof women's intimate apparel for periods and incontinence. Its product includes bras, underwear, activewear, loungewear, sleepwear, shapewear, maternity, and swimwear. It was formerly known as Knixwear. It was founded in 2012 and is based in Toronto, Canada.

With Knix Leakproof Underwear, light bladder leaks won't stop you. Shop the most absorbent, machine-washable, comfortable, and reusable leakproof incontinence underwear.

If you're going to be sleeping for more than eight hours, it's a better idea to wear a pad to bed. Tampons are great for swimming, and some women prefer to wear them during their whole period.