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  9. Period & Leak Proof - Full Brief - Moderate - Heavy
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
XS-4XL
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
XS-4XL
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black
Period & Leak Proof - Full Briefs - Moderate - Heavy - Black

Period & Leak Proof - Full Brief - Moderate - Heavy

In Period Seamfree Fabric

£16.95GBP
Colour:
Size
Size Guide
Pack Size

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Features
Breathable
Leak Proof Technology
Non-Toxic
Odour Resistant
PFA Free
Moderate - Heavy Absorbency
Size & Fit
Runs small
True to size
Runs large
  • High-rise design for optimal coverage and comfort.
  • Soft wide ribbed waistband and seamfree construction for added comfort.
  • Machine washable with fast-absorbing leakproof technology.
  • Double-layered towelling gusset ensures freshness and dryness.
  • Designed for moderate to heavy period days, occasional light bladder leaks, and discharge.
  • Absorbency: Up to 3 regular tampons, up to 3 regular 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 Standard Shipping on UK orders over £45.
  • Free Express Shipping on UK orders over £80.
  • Fast delivery, track your order easily. Learn more about shipping and delivery.
  • Easy returns process, hassle-free policy.
  • Returns accepted within 30 days of purchase.
  • Only unopened Intimates can be returned. Learn more about our returns policy.
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

Complete The Look

Period & Leak Proof - Full Brief - Moderate - Heavy

Why is this product perfect for you?

  • High-rise design for optimal coverage and comfort.
  • Soft wide ribbed waistband and seamfree construction for added comfort.
  • Machine washable with fast-absorbing leakproof technology.
  • Double-layered towelling gusset ensures freshness and dryness.
  • Designed for moderate to heavy period days, occasional light bladder leaks, and discharge.
  • Absorbency: Up to 3 regular tampons, up to 3 regular pads, holds 15ml.

Why We Made This

All the comfort and breathability of our regular Full Brief undies but with added reliable, stress-free protection. Featuring four-layer, fast-absorbing leakproof technology that holds up to 3 regular tampons, keeping you fresh and dry. All our Period & Leak Proof Underwear is PFAS and Silver free, as it should be.

Frequently Asked Questions

Here are the questions other people ask about this product.

They feature a high-rise fit that provides full stomach and bum coverage. If you’re a fan of our Original Full Briefs, these are for you.

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 single-layer 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 Full Briefs Moderate to Heavy are available in extended sizing; XS-4XL.

Overall rating: 4.6066175 / 5 from 272 reviews.

AI Generated Review Summary

These period and leak proof briefs offer great comfort and coverage for moderate to heavy protection. Customers appreciate the soft fabric, high absorbency, and lack of leaks. The fit and waistband are also praised for their comfort and ease of use.

Summary topics

  • Absorbency: 6%
  • Fit: 8%
  • Period Protection: 6%
  • Fabric Comfort: 9%
  • Leak Protection: 10%

Review topics: ["size","fit","look","support","quality","waist","fabric","issue","design","material","comfort","pants","style","shape","feel","undies","stretch","coverage","padding","underwear","protection","band","comfy","leaks","period","absorbency","briefs","waistband","gusset","proof"].

Review highlights

  • "Just what I was looking for on those heavy days - good coverage and nice soft fabric." — Amy B.
  • "Lovely soft fabric, comfortable supportive and effective design." — Annie H.
  • "I had no issues with leaking and felt confident and comfortable." — Ms P.

Reviews

I'm never going back to the other brands - worth the hype

"I purchased a few pairs of briefs and period underwear from their recent sale as trial - and I am convinced now that I will only buy Boody underwear in the future. Very comfortable, high quality!"

— Kim N. (5/5)

The perfect underwear!!

"I just keep coming back and buying these! They are so soft and sit perfectly in bigger tummies."

— Stephen E. (5/5)

Boody comfort!

"Fantastic comfort and support for that time of the month."

— Catherine S. (5/5)

Very comfortable

"I bought these underwear as I’m getting older and issues like leakage is a problem it’s great getting old and the joys of having children naturally"

— Kim C. (5/5)

Soft, absorbent, and comfortable fit!

"Soft and comfortable fit, I sized up because previously I've bought period underwear from other brands and it was squeezing and digging in, this size still works fine for me, but next time I will try and buy my normal size. Super absorbent which works well for me for overnight, it takes at least two warm days to line dry. The soft material and wide waistband make these incredibly comfortable compared to other brands."

— Jess (5/5)

Absolutely amazing to sleep in

"I love these, they are comfy and leak proof to sleep in, just perfect"

— Penny G. (5/5)

Knickers

"Such a good product. Gives back confidence to old ladies with a leaky problem. So good. Have used for 2 years now. They wash well and continue to work well. Thank you so much for making my life a lot easier"

— Elizabeth W. (5/5)

Comfy

"So comfy! My first experience of period pants and I love them. I'm back to purchase more. I've found they don't ride up even with a larger bum. No leaking or mess, much comfier than pads."

— Lisa (5/5)

Above average

"Bulkier than I would like. But otherwise comfortable and leak proof"

— Hannah (3/5)

Very effective & comfortable

"This is my second pair and I find them very comfortable and the material breathes well in a humid climate, which I overheat in very easily. I have abnormally heavy cycles so I don't use any period briefs for my full cycles as I would need too many pairs to keep swapping around. However, this pair is very effective for the last couple of days of my cycles when it eases off to a more normal heavy level. Love these :)"

— Niesha S. (5/5)

Q&A

Please make this in a Boyleg/shortshort with the soft high waist
We really appreciate your feedback Kim. We've passed your suggestion on to our Design Team. You may be pleased to hear that they are actively reviewing and tweaking our Period & Leak Proof range, so this feedback is much appreciated. Be sure to sign up for our mailing list, as that will ensure you're the first to know about any of our upcoming product releases. Thank you!

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