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Pynpy' Seamless High Waist - Black period underwear

Pynpy' Seamless High Waist - Black period underwear, back view

Pynpy' Seamless High Waist - Black period underwear, absorbent layer detail

Pynpy' Seamless High Waist - Black period underwear, lifestyle

Seamless High Waist – Black

★★★★★ 4.8 (194 reviews)

฿1,290.00

Absorbency Absorbency guide

HEAVY Holds 20-30ml (~3 pads)

Size Size Guide

True to size. 94% of customers agree.

Earn ~258 points with this purchase

Size

Clear

Buy 3 save 10% • Buy 5 save 20% • Buy 7 save 25%

Free shipping above 2000 THB

Easy size exchange within 30 days

OEKO-TEX certified

Machine wash, 2+ year life

Ships in 1-2 business days

Free shipping over ฿2,000

30-day exchange

Buy 3 save 10%

Buy 5 save 20%

Buy 7+ save 25%

Most customers own 3-5 pairs. See bundles →

About This Model

High-waist seamless fit, invisible under clothes
Stretchy, breathable, all-day comfort
Absorbs ~3 pads (heavy flow)
Machine washable, reusable 2+ years

How It Works

Seamless High Waist is our highest-absorbency model — it absorbs about 3 pads' worth, sits high on the waist for extra coverage, and uses seamless construction so there are no visible panty lines.

No more waking up to check. No more towels on the bed. No more worrying about leaks.

Customers say "Woke up to a perfectly clean bed." · "Finally slept through the night without worrying." · "Absorbs way more than I expected."

Moisture-wicking top

Bamboo-cotton surface draws moisture away from skin. Naturally breathable and soft against the body.

Absorbent core

Holds 20–30ml — about 3 regular pads' worth. Our highest absorbency, no extra inserts needed.

Leak-proof barrier

Thin PUL membrane keeps everything contained. High waist adds extra security overnight.

Machine washable. With proper care, one pair lasts 2+ years.

What It's Made Of

Main body	78% nylon + 22% spandex — seamless, stretchy, no visible panty lines
Gusset	Bamboo-cotton blend — highly absorbent, breathable
Absorbent core	Built-in layers absorb 20–30ml (~3 pads)
Leak-proof layer	Thin PUL membrane — no bulk, full protection

OEKO-TEX® Standard 100 certified
Tested safe for direct skin contact · PFAS-free

Care
Cold rinse → machine wash → hang dry. No bleach or fabric softener.

Size Guide

Measure around the widest part of your hips — that's the only measurement you need.

Size	Inches	CM
S	33–36″	84–91
M	36–39″	91–99
L	38–41″	97–104
XL	40–42″	102–107
2XL	42–45″	107–114
3XL	45–48″	114–122
4XL	48–51″	122–130
5XL	52–55″	132–140

Between sizes? The seamless fabric stretches generously — if you're right in the middle, the smaller size usually fits. Free exchanges within 30 days.

Common Questions

Can I really sleep in this without leaking?

Seamless High Waist holds about 3 pads' worth and sits high on the waist, so it stays in place even when you toss and turn. Most customers start by testing overnight — and never go back to pads in bed.

How much does Seamless High Waist absorb?

About 3 regular pads' worth — our highest absorbency model. Enough for heavy days and overnight. Some customers pair it with a liner on their heaviest day for extra confidence.

Can I wear it all day?

Many customers wear it through a full day, not just overnight. On your heaviest days, a midday change gives extra peace of mind.

How do I wash it?

Rinse under cold water, then machine wash with your regular laundry. Hang to dry. The seamless nylon-spandex fabric dries quickly.

How long does one pair last?

With proper care (cold rinse, machine wash, hang dry), a pair lasts 2+ years. Far less than buying pads every month.

How is this different from Classic Cut?

Higher absorbency (~3 pads vs ~2), higher waist for extra overnight security, and seamless construction for no visible panty lines. Classic Cut is great for regular daily use. Seamless High Waist is for heavy days, overnight, or anyone who wants maximum protection.

Shipping & Returns

"I sleep 10 hours in these. No stains. That was the test for me."

Ploy, Bangkok · ★★★★★

COMPLETE YOUR CYCLE

Complete your set

Most customers also grab the Day & Night Set

Day & Night Set

Day and night coverage in one set. Classic Cut for daytime, Seamless High Waist for overnight. Includes free waterproof bag.

฿2,970 ฿2,190

Save ฿780 View bundle · ฿2,190

Full Cycle Set

Light, medium, and heavy — one set covers your entire period. Daily for light days, Classic Cut for medium, Seamless for heavy flow and overnight.

฿4,060 ฿2,990

Save ฿1,070 View bundle · ฿2,990

Just want the bag? Waterproof Bag · ฿490 Keeps everything contained — free with any bundle above.

Add to cart

Or: Browse all bundles →

★★★★★ 6 Jul 2026

Verified buyer · Gam B.

Used to get rashes from disposable pads every single month and it was miserable. Switched to these and my skin has been completely fine — soft fabric, no irritation whatsoever.

★★★★★ 4 Jul 2026

Verified buyer · Ratchanee H.

Great product, great shop, fast shipping, and excellent customer service — they're attentive and quick to solve any issues.

★★★★☆ 3 Jul 2026

Verified buyer · Manee P.

Three months in and I have not gone back to disposables once. The overnight protection is genuinely good and I sleep better knowing I am not going to wake up to a mess. Just wish the waistband were a tiny bit softer.

★★★☆☆ 3 Jul 2026

Verified buyer · Fah S.

Skin feels fine with it, no irritation at all, and the seamless edge means no marks digging into my waist. My issue is that on day two of my cycle I had to change it after about five hours, which was shorter than I expected for something marketed as heavy absorbency.

★★★★★ 24 Jun 2026

Verified buyer · Siriwan P.

These have replaced every single pad in my bathroom cabinet and I have not looked back once. The waistband is soft and never digs in, even when I am bloated.

Show more reviews

Seamless High Waist – Black ฿1,290.00

Seamless High Waist – Black

Complete your set

Day & Night Set

Full Cycle Set

Customer reviews

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