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  7. Period & Leak Proof - Undershort 3" - Moderate
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
XS-4XL
Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black Period & Leak Proof - Undershorts 3" - Moderate - Black
XS-4XL
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black
Period & Leak Proof - Undershorts 3" - Moderate - Black

Period & Leak Proof - Undershort 3" - Moderate

In Period Seamfree Fabric

$40.00USD

Goodnight Sleep: Buy 1, Get Second 50% Off

Colour:
Size
Size Guide
Pack Size

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Features
Breathable
Leak Proof Technology
Non-Toxic
Odour Resistant
PFA Free
Moderate Absorbency
Size & Fit
Runs small
True to size
Runs large
  • Full, high-rise coverage for maximum protection (and comfort), perfect for overnight wear.
  • 3” leg length provides additional coverage and comfort under shorter skirts and dresses.
  • Soft ribbed waistband and seamfree design for ultimate comfort.
  • Machine washable with fast-absorbing leakproof technology.
  • Single-layered towelling gusset protection ensures freshness and dryness.
  • Designed for moderate period days, occasional light bladder leaks, and discharge.
  • Absorbency: Up to 3 tampons, 3 pads, holds 15ml.
  • Certified as 100% PFA-free.
Outer: 79% Viscose made from bamboo, 15% Nylon, 6% Elastane. Gusset 1 : 100% Cotton. Gusset 2: 72% Viscose made from bamboo, 28% Cotton. Gusset 3: 86% Modal, 7% Seaweed Fibre, 7% Elastane.
Wash before wear, after use rinse with cold water until water runs clear. Machine wash cold with similar colors, gentle cycle. Do not bleach. Do not tumble dry, flat dry in shade. Do not iron. Do not dry clean.
  • Free shipping on US orders over US$60.
  • Free shipping on CA orders over CA$110.
  • Fast delivery, track your order easily. Learn more about shipping and delivery.
  • Easy returns process, accepted within 30 days of purchase. Learn more about our returns policy.
  • Items purchased at a discounted price during promotional sale events are eligible for exchange or store credit only.
  • Final sale items cannot be exchanged or returned.
  • Only unopened Underwear can be returned.
Size chart
We are here to help you choose your perfect fit
UNDERWEAR SIZE CHART
Model Bio
Model's Photo - Laura De Wit

Laura


Height:176cm (5' 9")
Waist:62cm (24.4")
Bust:82cm (32.3")
Hips:90cm (35.4")
Wears: Size S Boody Bottom

Model's Photo - Caitlin Murphy

Caitlin


Height:183cm (6' 0")
Waist:86cm (33.9")
Bust:100cm (39.4")
Hips:121cm (47.6")
Wears: Size XL Boody Bottom

Model's Photo - Jessica Turnbull

Jessica


Height:171cm (5' 7")
Waist:98cm (38.6")
Bust:121cm (47.6")
Hips:141cm (55.5")
Wears: Size 2XL Boody Bottom
Period & Leak Proof - Undershort 3

Why is this product perfect for you?

  • Full, high-rise coverage for maximum protection (and comfort), perfect for overnight wear.
  • 3” leg length provides additional coverage and comfort under shorter skirts and dresses.
  • Soft ribbed waistband and seamfree design for ultimate comfort.
  • Machine washable with fast-absorbing leakproof technology.
  • Single-layered towelling gusset protection ensures freshness and dryness.
  • Designed for your lightest period days, occasional leaks, and discharge.
  • Absorbency: Up to 3 tampons, 3 pads, holds 15ml.
  • Certified as 100% PFA-free.

Why We Made This

Your favourite leakproof protection, now in a 3" Undershort for added coverage and comfort. We took our moderate absorbency and combined it with a high-rise, full-coverage short that’s perfect for overnight wear or extra security under dresses and uniforms. Crafted with a soft ribbed waistband, seamless finish, and a smooth 3" leg, it provides hidden comfort without bulk. With fast-absorbing layers that hold up to 3 tampons (15ml), the Period and Leakproof Undershort 3” keeps you fresh, dry, and confident. Zero ride-up, all reassurance… your new secure go-to.

Frequently Asked Questions

Here are the questions other people ask about this product.

They feature full, high-rise coverage, with 3” leg length which provides additional coverage and comfort under shorter skirts and dresses.

They offer Moderate to Heavy absorbency, holding up to 15ml, equivalent to up to 3 regular tampons or 3 regular pads

Yes. Designed for moderate to heavy flow days, many people wear them comfortably throughout the day, depending on personal flow and preference.

The underwear features fast-absorbing, built-in leak protection, including a double-layered towelling gusset that helps absorb moisture and keep you feeling dry.

No. The absorbent layers are integrated into the underwear, so they feel much more like your everyday underwear.

Yes. They are certified 100% PFAS & Silver free, meaning they do not contain harmful forever chemicals.

Yes. Reusable period underwear can save money over time compared to continually buying disposable products.

You can machine wash them with your regular laundry on a cool wash, up to 40°C/104°F. Avoid fabric softener and tumble drying to help maintain the leak-proof technology.

The Period & Leak Proof Undershort 3” Moderate  are available in extended sizing; XS-4XL.

Overall rating: 4.605263 / 5 from 38 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["feel","material","fit","shorts","fabric","pants","lines","leaks","works","undershorts","briefs","gusset"].

Review highlights

Reviews

Very comfortable

"I use the nixit menstrual cup when on my period but I prefer to wear menstrual underwear with it for safety. These were very comfortable to wear. They are soft and make you feel like you don't have to worry about any leakage. Very nice for those days when you feel extra everything because of your period. 100% recommend."

— Lara F. (5/5)

Exactly as intended!

"I use these on heavy flow days and found that they work really well! I was particularly impressed with their overnight protection and how comfortable overnight they are! It's literally like you're wearing just normal boyleg underwear to bed! VERY IMPRESSED! Leak protection: ⭐⭐⭐⭐⭐ I felt [confident/not completely confident] wearing them, especially during [work/sleeping/travel/heavy-flow days]. Washing & drying: ⭐⭐⭐⭐⭐ They were [easy/a little difficult] to wash and [dried quickly/took a while to dry]. After washing, they [kept their shape/remained soft/etc. ]."

— G (5/5)

Comfortable and soft

"These are comfortable and soft ; the only thing is they are quite thick so if you wear it under a tight pair of pants you can see the shape of the pad at the back. Apart from that ; perfect!"

— Manon p. (3/5)

It grows on you

"At first it felt a bit awkward to wear it as I am not used to wearing shorts as underwear. But then it turned out very comfortable and there were no leaks. The fabric of the shorts itself is very light and breathable."

— Paloma A. (5/5)

Live the fabric

"I ordered a size up for all the underwear but these ones i would re order in my normal size. Lovely fabric. No sensory issues"

— Shannon (5/5)

Perfect

"These are by far the most comfortable period pants I own. I've even bought multiple pairs."

— Aurora (5/5)

Love

"Needed something comfy and practical when I'm feeling my worst. These are great. Might size up to make it less tight. Definitely on the thicker side"

— Andrea S. (5/5)

Bit loose

"Shorts itself are a bit loose and there's just so much fabric around the waist / hip that I'm always hoisting up the waistband. Aside from that, a comfortable pair of pants."

— Cher L. (4/5)

Should have brought ages ago!

"Absolutely stoked with my purchase! I’m an au 12-14 and got a M."

— Stevie L. (5/5)

Comfy and fits well

"Very soft, does not dig in like some other brands. Would only be better if the entire garment was sustainable materials"

— Chanel C. (4/5)

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