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Plus-size menstrual panty for heavy flow: the Louloucup collection

Written by: Camille Raynaud

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Published on

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Time to read 7 min

Just because you wear a size 44 and have heavy periods doesn’t mean you’re stuck using disposable, polluting pads with questionable ingredients!


Putting on a menstrual product that fits well, adapts to your waist and body shape, follows your curves, and properly absorbs your menstrual flow shouldn’t be a myth.


At Louloucup, you’ll easily find what you need: plus-size period panties from 2XL to 5XL, perfectly suited for heavy and very heavy flows. No more worrying about leaks or irritating elastics digging into your hips or groin. Now you can feel comfortable and confident during your period—no matter your size!


In this new article, discover the Louloucup plus-size heavy flow period panty, designed to hug your curves and absorb the equivalent of 5 pads, without sacrificing comfort.

I. The double challenge: plus size and heavy periods 🌸

Did you know that 1 in 3 women in France experiences heavy or very heavy periods? Combined with a plus-size body type, this double challenge can make managing your period a real headache.

🌸 Take back control of your period

Plus-size women and/or those with heavy flow often feel invisible in the period product market. Standard pads and tampons overflow too soon, poorly fitting elastics leave painful marks, and the fear of leaks dominates every day.


But it doesn’t have to be that way. Plus-size heavy flow period panties can be especially helpful for these women. The key? A design made for all body types (not just a size 6) and for heavy flows.

🌸 Spotlight on heavy and very heavy flow

A heavy flow is more than 80 ml of blood per cycle, which equals about 5 regular size 3 tampons per day. This is often linked to endometriosis, fibroids, or copper IUDs, and affects 18% of women of reproductive age. The causes of heavy and intense periods are very diverse.


Disposable protection, designed for medium flows, doesn’t really meet these needs. Disposable pads shift around and fill up quickly. Tampons leak.


In addition, toxic shock syndrome from tampons or irritation from plastic-coated pads add health risks to everyday discomfort.

🌸 The plus-size struggle: finding protection that actually fits right

Why do most standard protections fail for plus-size bodies? Here are the recurring issues:

  • A protection zone that’s too narrow can cause side leaks.
  • Poorly fitted elastics that dig into your thighs or hips.
  • Not enough coverage in the front or back, especially at night.
  • Underwear completely unsuited to your body shape.
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grande taille
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II. The Louloucup Plus Size Range: the comfort and security solution designed just for you 🩷

The Louloucup plus-size heavy flow range offers 6 different styles, from 2XL to 5XL, at budget-friendly prices, made from GOTS-certified organic cotton, Oeko-Tex Standard 100 label, and free from PFAS.

🩷 More than just underwear, a second skin: the Louloucup promise

Louloucup is reinventing menstrual lingerie with a collection specially designed for curvier body types. Each piece is made to naturally hug your curves, with no compromise on style or comfort.


The brand’s plus-size panties aren’t just larger versions—they’re redesigned to guarantee a perfect fit. Their philosophy is summed up by the phrase “designed to fit just right”: a cut that adapts to every body shape, without digging in, pinching, or causing irritation.

Inclusive sizing up to 5XL to fit every body type.

An extended absorbent area that goes high up the front and back for maximum leak protection.

Modern and stylish cuts (high-waisted, boyshort, seamless) to feel beautiful on any occasion without compromise.

Soft, breathable materials (Oeko-Tex certified organic cotton) to protect your intimate area.

🩷 The benefits of our plus-size period underwear

Effective day or night: whether you're active during the day or tossing and turning at night, you can feel calm and confident. 

Many hours of peace of mind: no more running to the bathroom X times a day to change. 

A completely transparent and healthy composition for both your body and the planet: mostly natural materials, tested, certified, and approved.

Durable and eco-friendly, our period underwear lasts between 5 and 7 years with proper care.

Thoughtfully designed and ultra-discreet cuts: no one will ever guess you’re wearing period protection under your clothes!

III. Our Plus Size Selection for Heavy and Very Heavy Flow

For heavy, intense, or hemorrhagic flows, Louloucup offers styles designed to combine safety, absorbency, and comfort. Discover six of the brand’s top picks, available up to 5XL.

❖ Clara, the absorption champion

The Clara heavy-flow plus-size period underwear—how can we put this? Everyone loves it. It’s been Louloucup’s best-seller from the very beginning. Honestly, no one does it better than Clara.

Clara is the go-to for very heavy flows and strong periods. Its high-waisted design shapes the stomach and provides optimal support. With a capacity equal to 5 tampons, it’s a reassuring solution, day or night. And, let’s be honest… it looks seriously classy!

❖ Liv, ultimate discretion

Thanks to its seamless technology, the Liv plus-size seamless period underwear stays invisible under even the tightest clothes. Despite its lightweight design, it doesn’t sacrifice absorbency, making it perfect for active women, athletes, and anyone looking for completely invisible period underwear.

❖ Mathilde, the versatile comfort option

The Mathilde plus-size heavy flow period underwear is the epitome of simple effectiveness. Its classic style and ultra-wide absorbent area make it an everyday essential, perfect for restless nights or heavy bleeding. Its discreet look and durability have made it a best-seller.

Its mid-rise waist, black color, and delicate dotted details make it a reliable choice!

❖ Leo, the super cool tiger-striped one

The Leo plus-size period panty is Louloucup’s latest addition. Its tiger print is super fun, and the cut is quite low-rise. In terms of absorbency, it holds the equivalent of 4 tampons.

❖ Fanny, the classic must-have

Black and lace come together in this plus-size Fanny period panty—a timeless, ultra-practical, comfortable, and soft style. We love the simplicity and effectiveness of this model.

❖ Jade, the super comfortable romantic

Rare model alert! With the Jade plus-size period underwear, you’re adding flowers to your daily life and more! The crotch of the Jade model measures 10 centimeters, making it wider than usual. Perfect for central flow (and active days).

IV. Comparison chart of plus-size period panties for heavy flow

Model Main features

Absorption level


Special Features / Highlights


Clara High-waisted shaping fit, optimal support ≈ 5 tampons
Louloucup bestseller, perfect for very heavy flow/day/night, elegant look
Liv Seamless technology, invisible under tight clothing ≈ 5 tampons
Ideal for active or sporty women—comfort plus absolute discretion
Mathilde Classic style, ultra-wide absorbent zone 4 to 5 tampons Perfect for restless nights, heavy bleeding, mid-rise, dotted mesh finishing
Leo Low-rise, tiger print, fun ≈ 4 tampons
Recent model, original style
Fanny Black and lace, classic cut ≈ 4 tampons
Comfortable, practical, soft fabric
Jade Floral print, wide gusset (4 inches)
5 tampons Ideal for central flow and active days

V. In short: plus-size period underwear for heavy flow

Plus size, absorbent, safe, soft, organic, affordable, stylish, comfortable, discreet, sexy, unique... the plus size heavy flow menstrual panty is not a myth!


Each pair in the Louloucup plus-size range features certified organic cotton (Oeko-Tex) for healthy skin contact. Technical fibers prevent odors, moisture, and leaks, for an uncompromised experience.


By choosing Louloucup, you’re opting for an eco-friendly alternative to disposable products. With a lifespan of 5-7 years, each model reduces waste and long-term costs, while fitting a variety of body types. An innovation that meets the needs of active women, new moms, or anyone who loves ultimate comfort.


Finding protection for heavy flow and plus sizes is no longer a struggle. With Louloucup, discover great styles from XL to 5XL at unbeatable prices. Remember, the more products you add to your cart, the more you save. The unit price drops with each additional item. For a bundle or pack of 5 products of your choice, you save over €30 on your final bill. Plus, shipping is free. However, please note that return shipping is at your expense, so before finalizing your order, make sure to take your measurements and use the size guide. (Psst! Don’t forget to check for a promo code to save even more.)

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grande taille
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FAQ: Plus-size period underwear for heavy flow

What’s the best plus-size, heavy-flow period underwear?

We recommend Fanny! This lovely solid black panty with a lace waistband has an extended absorbent area that goes up the front and back. It costs €28.90.

What’s the best plus-size menstrual underwear for a very heavy flow?

Definitely Clara! Its high, full-coverage waist, elegant look, and super wide, double-layered protection make it perfect for very heavy flows.

Cup or underwear for very heavy flow?

Louloucup period underwear is perfect for very heavy flows (Clara, Mathilde, Liv, etc.). You can also consider a menstrual cup, which collects blood very efficiently and hygienically.

Why isn’t my period underwear absorbing anymore?

This could be due to improper care: using fabric softeners, fatty soaps (like Marseille soap), or high temperatures. Machine drying or drying near a heat source also weakens the materials. To preserve its absorbency, rinse it in cold water, wash at 30-40°C without harsh products, and let it air dry. With proper care, a Louloucup panty lasts 5 to 7 years.

Why is my period underwear leaking?

Leaks can happen if the underwear doesn’t match your flow (not enough capacity), if it’s not the right fit (wrong size), or if the absorbent area is saturated.

Learn more

High-quality, beautiful menstrual panties in sizes 42, 44, 46, or 48, organic and affordable?