Buy any 3 for 15% off, buy 5+ for 20% off
Buy any 3 for 15% off, buy 5+ for 20% off
Buy any 3 for 15% off, buy 5+ for 20% off
Buy any 3 for 15% off, buy 5+ for 20% off
Underwear How It Works Feature Tile

How does
Leakproof
underwear work?

Each pair has a built-in liner that absorbs period blood. Kt Period Underwear is categorized by light, moderate, heavy and ultra flows so you can find the right pair for your teen’s needs.

Your questions, answered.

It's easy, we promise. Give them a quick rinse under cold water first, then toss them in the washing machine with your regular clothes, cold water, mild detergent, no softener or bleach. For drying: lay flat for medium absorbency styles, or tumble dry on low for high and super absorbency ones. That's it. No ironing needed!

Good news, period underwear and pads are exempt from federal sales tax in Canada, and most provincial/harmonized sales taxes too. The exception? If your order ships to British Columbia or Manitoba, a PST applies.

Each pair has a built-in liner that absorbs period blood, no pad or tampon required (unless you want one!). Period underwear comes in different absorbency levels so you can find what works best for your flow.

Ultra: Absorbs the equivalent of 7-11 regular tampons. Designed for extra-heavy period days and overnight protection.

Heavy: Absorbs the equivalent of 4–7 super tampons. Great for overnight or heavier days.

Moderate: Absorbs about 2.5 super tampons' worth. Great for medium flow days.

Light: Absorbs about 1 regular tampon's worth. Perfect for spotting and lighter days.

Totally up to them! Every flow is different, and there's no wrong answer. They can wear period underwear on their own or use them as backup alongside a tampon or menstrual cup.