Still Using Knicker Liners? Here's Why It's Time to Switch to Period Underwear

Let’s be real: knicker liners have had their moment. They were a go-to for spotting, discharge, and light period days. But now? There’s a new MVP in town: period underwear — and once you try it, there’s no going back.

If you’re someone who still reaches for a panty liner out of habit, this blog is your gentle nudge (okay, maybe a shove) toward a better, comfier, and way more sustainable option.

What Even Are Knicker Liners For?

Knicker liners — also known as pantyliners or daily liners — are thin pads designed for everyday use. According to the Women's Environmental Network, millions of these disposable pantyliners are discarded daily, contributing to plastic pollution. They're often used to absorb vaginal discharge, surprise spotting, or as backup with other feminine hygiene products. For some, they’re a daily staple. But they come with a few not-so-lovely side effects:

• Constant shifting (hello wedgies)

• Bunching up by midday

• Not breathable

• Single-use and non-biodegradable

• Often contain plastic, scented panty liners, or harsh chemicals

So while they seem harmless, they’re often uncomfortable and far from eco-friendly.

Why Period Underwear is a Total Game-Changer

Period underwear isn’t just for full-flow days. At Fri Period, our range is designed to support light spotting, discharge, leaks, light urine leakage, and full-on menstrual flow. Think of them as your all-in-one, ultra-comfy, leakproof solution — without any of the downsides of liners.

Here’s why switching just makes sense:

1. Comfort That Actually Feels Like Underwear

Our period underwear is made with soft, breathable fabrics like organic cotton and bamboo viscose. These plant-based materials are kind to sensitive skin, naturally antibacterial, and better for the planet. You won’t feel like you’re wearing a panty shield (because you’re not). No chafing. No plasticky crinkle. Just softness and stretch where you need it most.

2. Built-In Leak Protection

Every pair is built with leakproof technology that absorbs moisture and locks it away. Whether it’s discharge during ovulation, bladder leaks, or those light days at the tail-end of your period, Fri Period underwear has you covered — literally.

3. Bye-Bye Single-Use Waste

Let’s talk eco. The average person who menstruates will use over 10,000 disposable feminine hygiene products in their lifetime. That’s a lot of long panty liners going straight to landfill. With period underwear, one pair can be washed and reused again and again, saving you money and reducing your waste.

4. No Surprise Fragrances or Chemicals

Unlike many liners, Fri Period undies are free from toxins, fragrance, and harsh chemicals. You get peace of mind knowing nothing weird is hanging out down there.

5. Low-Key Confidence All Day

Whether you’re heading to work, the gym, or just lounging, you deserve to feel secure. Period underwear offers a discreet and trustworthy layer of breathable coverage that moves with your body, not against it.

Okay But... What About Daily Freshness?

We hear you. Some people use panty liners for that "fresh" feeling. Here’s the thing: your body isn’t dirty. Vaginal discharge is healthy and normal. What isn’t normal? Using products that make you feel like you need to hide it.

Period underwear helps you embrace what your body does naturally, while still keeping you dry and comfy. No shame. Just science-backed design. Some of our light absorbency options offer instant absorption, so you always feel fresh.

You’ll be surprised how quickly it becomes your new normal. Plus, you won’t miss those super thin, individually wrapped liners that end up in your bin every day.

TL;DR: Panty Liners Had Their Time. Period Underwear is the Future.

If comfort, sustainability, and confidence matter to you (and we’re guessing they do), period underwear is the upgrade your body’s been waiting for.

So go ahead. Give liners the boot and make the switch to comfort that lasts.

Your body (and the planet) will thank you.

Explore Leakproof Comfort

Ready to make the switch? Browse our full collection of period underwear designed for every flow, mood, and body.

FAQs

1. Can I wear period underwear every day?
Absolutely. Choose a light-absorbency pair for daily discharge or spotting.

2. How do I wash them?
Rinse in cold water, then pop them in the wash with your regular laundry. Air-dry for best results.

3. Will they feel bulky like pads?
Not at all. Fri Period underwear is sleek, soft, and made to feel just like your regular undies.

4. Is period underwear safe for sensitive skin?
Yes! Our fabric is gentle, breathable, and free from harsh chemicals or fragrances.

5. How many pairs do I need to start?
We recommend 3–5 pairs if you’re replacing liners, so you can rotate while washing.