Looks like ordinary underwear. Inside, it's anything but.
Here's how period underwear works: three layers of protection are built into every pair. They absorb moisture, lock it away, and protect your clothes. For many people, one pair is all they need.
THE TECHNOLOGY
What's inside
1
Moisture-wicking top layerNo damp feeling against your skin. The top layer pulls moisture away and helps keep you feeling fresh. Instead of sitting on the surface like a pad, moisture moves into the absorbent core underneath.
2
Absorbent coreHolds up to 30ml for period styles — roughly 3 pads' worth. Bladder leakage styles hold 10–100ml. Absorbs quickly and locks moisture in.
3
Leak-resistant barrierA protective layer under the core stops liquid from reaching your clothes and sheets.
Together, all three layers stay hidden inside the underwear, so it still feels and looks like regular underwear.
WHY PEOPLE SWITCH
What changes when you stop using pads
Disposable padsPynpy'
Can irritate sensitive skinSoft fabric, tested for sensitive skin
Traps heat and moistureStays dry and breathable
You're always aware it's thereForget you're wearing it
Buy new packs every monthOne purchase lasts 2+ years
Can shift during the dayBuilt into your underwear
Creates waste every cycleWash and reuse
FIND YOUR FIT
Which absorbency is right for you?
Light
~5ml (~1 pad)Best for: Spotting, light days, backup with a cupShop light →
Everything you need to know before your first pair
Your first time
First wear — It feels like regular underwear. Most customers forget they're wearing it.First wash — Wash before first use to activate full absorbency.First heavy day — Start at home while you build confidence. You'll be surprised.
How long can I wear it?
Light day✓ All day
Regular day✓ 8–10 hours
Heavy day✓ Change once
Overnight✓ Heavy styles
How many pairs do I need?
First time2–3 pairs
Daily use5–7 pairs
Full cycle7–10 pairs
What if I leak?
Choosing the right absorbency level matters. If you're between two options, start with the higher absorbency while you learn what works best for your flow. On your heaviest days, you can pair with a cup or tampon for extra confidence.
What size should I get?
Check our size guide — based on our customer survey, 94% say Pynpy' runs true to size. If you're between two sizes, go with the larger one for a more comfortable fit.
✓ 25,000+ customers✓ 20+ stores across Thailand✓ OEKO-TEX certified✓ 7 years, independently built
WHAT CUSTOMERS SAY★★★★★
"I didn't believe underwear could replace pads. After 6 months with Pynpy', I haven't bought a single pad."
Pim, Bangkok
EASY CARE
It washes like normal underwear.
1RinseRinse in cold water after wearing.
2Machine washCold cycle. No bleach. That's it.
3Hang dryAir dry or tumble on low heat.
Each pair lasts 2+ years with proper care.
WHY PEOPLE TRUST US
Why people trust Pynpy'
OEKO-TEX certifiedIndependently tested and certified free from harmful substances. A global standard.
Skin-safeTested for sensitive skin. Soft, gentle fabrics designed for all-day comfort.
Premium fabricsSoft, breathable, and carefully sourced. Naturally comfortable against the skin.
Quality testedEvery production batch is tested before it reaches you.
OUR PROMISE
Try Pynpy' with confidence
Not sure if absorbent underwear is right for you? That's normal. If you're not completely satisfied within 30 days,iFor unopened, unworn items only contact us and we'll work with you to make it right.
Yes. Pynpy' is designed to be worn on its own. Most of our customers do. On your very heaviest days, some customers pair them with a cup or tampon for extra confidence. But most of the time, the underwear alone is enough.
No. They look and feel like regular underwear. No visible lines, no bulk, no rustling. Nobody will know unless you tell them.
No. The antimicrobial properties in the fabric prevent odor buildup. Rinse after wearing and they stay fresh.
Check our size guide before ordering. Based on our customer survey, 94% say Pynpy' runs true to size. If they don't fit, we offer exchanges within 30 days on unworn items with tags, and we'll work with you to find the right fit.
Now you know how it works.
The only question is which style is right for you.
Take our quizAnswer 3 questions. Get a personal recommendation.
