Anti-Leak Ostomy Panties
The Anti-Leak Ostomy Panties are SIIL's leakproof intimate underwear engineered for the moments when you need extra protection — post-stoma surgery recovery, menstruation, late-night security, or any day when a pouch leak feels possible. Built with a 4-layer absorbent gusset that locks in up to 200 ml of liquid, a soft antibacterial knit, a hidden inner pocket for the ostomy pouch, and a discreet black colourway that pairs with every wardrobe.
Anti-leak ostomy underwear
Most ostomates have experienced an unexpected pouch leak — at the office, on a long flight, in bed, during exercise. The Anti-Leak Panty adds a second layer of protection: even if the pouch leaks at the baseplate, the absorbent gusset captures up to 200 ml before any liquid reaches your clothes. Pair with our standard Sofía or Classic panties as your everyday option, and reach for Anti-Leak on the days you need backup.
Post-op recovery panties
The first 4–6 weeks after stoma surgery are when leaks are most common — your pouch fit is still being dialled in, the skin around the stoma is healing, and overnight accidents disrupt rest. The Anti-Leak Panty is the perfect post-op companion: the high-waist band sits above the surgical site without rubbing, the absorbent gusset gives you peace of mind through the night, and the soft antibacterial knit is gentle on healing skin.
Menstrual ostomy panties
For ostomates who menstruate, the Anti-Leak Panty doubles as period underwear — the same 4-layer gusset that captures pouch leaks also handles menstrual flow (light to medium days). One garment for two body experiences: ostomy + period. No more juggling tampons, pads and ostomy management on the same day.
Ileostomy & colostomy leak protection
The hidden inner pocket fits one-piece and two-piece pouches from Coloplast, Hollister, ConvaTec, B. Braun, Pelican, NuHope, Marlen and Welland — across ileostomy, colostomy and urostomy use cases. Ileostomates report the most leak incidents (output is more liquid); the Anti-Leak Panty's absorbent gusset is engineered for liquid effluent, not just menstrual flow.
Overnight ostomy panties
Sleep is when leaks happen most — you don't notice the pouch filling, you roll onto the baseplate, output sits against the skin for hours. The Anti-Leak Panty's gusset captures any overflow before it reaches sheets, pyjamas or skin. Many customers wear them every night for the first 6 months post-op, then on "high-risk" nights afterwards.
Anti-Leak Panties FAQ
How much liquid does the gusset absorb?
Up to 200 ml — equivalent to roughly one full ileostomy pouch. The 4-layer absorbent core is sealed with a leakproof membrane underneath so liquid stays in the gusset, not on your clothes or skin. This works for both pouch leaks and menstrual flow (light to medium days).
How does the absorbent gusset work?
The gusset has 4 functional layers: (1) skin-touch wicking layer that pulls liquid away from the body, (2) antibacterial silver-thread layer that suppresses odour, (3) high-capacity absorbent core, (4) waterproof membrane that prevents any seepage to the outside fabric. Together they handle 200 ml without showing through to clothing.
Can I wear them post-stoma surgery?
Yes — many stoma nurses recommend the Anti-Leak Panty as the go-to garment for the first 4–6 weeks post-op. The high-waist band sits above the surgical site, the soft antibacterial knit is gentle on healing skin, and the absorbent gusset gives you peace of mind through the night when leaks are most disruptive.
Do they double as period underwear?
Yes — the same 4-layer gusset works for menstrual flow on light to medium days. For heavy flow days, layer with a tampon or menstrual cup; the panty acts as backup protection against unexpected leaks.
How do I wash and care for them?
Rinse in cold water immediately after wear (this preserves the absorbent core's capacity). Machine-wash at 30 °C on a gentle cycle, inside out, with similar dark colours. Air-dry flat — do NOT tumble-dry (heat damages the waterproof membrane). Avoid bleach and fabric softener. With normal care, one pair lasts 12+ months.
Will Anti-Leak fit my ostomy pouch?
Yes — the inner pocket is sized to fit one-piece and two-piece pouches from Coloplast, Hollister, ConvaTec, B. Braun, Pelican, NuHope, Marlen and Welland — across ileostomy, colostomy and urostomy use cases. The pocket fabric is stretch elastic so it adapts to different pouch shapes and capacities.
Anti-Leak Ostomy Panties
Anti-Leak Ostomy Panties
Leakproof high-waist panties with a 4-layer absorbent gusset (up to 200 ml). Engineered for post-op recovery, menstruation and high-risk nights — when a pouch leak is the last thing you need.
- 💧 Absorbs up to 200 ml liquid
- 🛡️ 4-layer leakproof gusset
- 🩹 Post-op & surgery recovery
- 🌙 Sleep without worry
- 💨 Antibacterial silver-thread knit
| Size | Waist | Hip | Best for |
|---|---|---|---|
| XS | 60–66 cm | 86–92 cm | EU 32–34 · Petite |
| S | 66–72 cm | 92–98 cm | EU 34–36 · Slim |
| M | 72–78 cm | 98–104 cm | EU 36–38 · Most common |
| L | 78–84 cm | 104–110 cm | EU 40–42 · Curvier |
| XL | 84–92 cm | 110–116 cm | EU 44–46 · Plus |
| XXL | 92–100 cm | 116–122 cm | EU 48–50 · Extended plus |
Tip: measure your natural waist and hip with a soft tape over light clothing. The mid-rise band sits AT your natural waist (not above). Between sizes? Choose the larger — the soft knit adapts down 4 cm comfortably.
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Free EU shippingOrders over €50 · Ships in 24h from Madrid
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30-day returnsNo questions asked
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100% pouch-compatibleColoplast, Hollister, ConvaTec, B. Braun & more
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Discreet packagingPlain box — your privacy first
Tailored for ileostomy, colostomy and urostomy — works with every pouch brand
Backup protection.
Built into your underwear.
Four reasons ostomates pick Anti-Leak for post-op nights and high-risk days.
200 ml absorbent gusset
4-layer leakproof core captures up to 200 ml — equivalent to a full ileostomy pouch. Wicks moisture away from the skin and locks it in.
Hidden inner pocket
Holds the ostomy pouch flat against the body — even under fitted clothing. No outline, no shifting, no embarrassing slip.
Post-op & menstrual ready
Stoma nurses recommend Anti-Leak for the first 4–6 weeks after stoma surgery. Doubles as period underwear on light to medium flow days.
Antibacterial silver-thread
Silver-thread antibacterial layer suppresses odour. Soft, breathable, machine-washable — built to last 12+ months of daily wear.
4 layers. Zero leaks.
Wear like normal underwear. The 4-layer absorbent gusset does the rest.
Wicking layer
Skin-touch fabric pulls moisture away from the body and channels it down into the absorbent core — keeps the skin dry.

Antibacterial absorbent core
Silver-thread antibacterial layer + high-capacity absorbent core lock in up to 200 ml of liquid without odour or seepage.

Waterproof membrane
Outer waterproof layer prevents any seepage to clothing, sheets or skin. The pouch leaks — but you stay dry.

Backup protection.
Built into your underwear.
4-layer leakproof gusset + hidden inner pocket + antibacterial silver-thread = peace of mind during post-op recovery, menstruation, and any high-risk day or night.

Catch leaks before they reach your clothes.
The 4-layer gusset captures up to 200 ml — equivalent to a full ileostomy pouch. Wicks moisture away from skin, locks it inside, prevents any seepage to clothing, sheets or skin.

Sleep without watching the clock.
The first 4–6 weeks after stoma surgery are when overnight leaks happen most. Anti-Leak gives you peace of mind so you can actually rest.
One garment. Two body experiences.
The same 4-layer gusset that captures pouch leaks handles menstrual flow on light to medium days. No more juggling tampons, pads and pouch management.
Discreet outside. Engineered inside.
The hidden inner pocket holds your ostomy bag flat against the abdomen — even under fitted dresses, jeans, structured suits. From the outside: a sophisticated black panty. Inside: a 4-layer leakproof shield + ostomy pouch holder.

What +1,800 ostomates say:
"I finally sleep through the night."
Verified reviews from real Anti-Leak customers across SIIL Store, Amazon, Etsy and Walmart.
Saved my first month post-op
"My ileostomy was new and leaks were happening every other night. Anti-Leak panties caught a 150 ml leak last week — pyjamas dry, sheets dry, sanity intact. Wish I had them from day one."
Period + ostomy in one panty
"Game-changer for me. I have an ileostomy AND I menstruate. Anti-Leak handles both. No more tampon-pad-pouch juggle every period. Bought 5 pairs after the first wash."
Finally sleep without checking
"I used to wake every 2–3 hours to check the pouch. Now I wear Anti-Leak and sleep 7 hours straight. Even when I had a baseplate failure, the panty caught it. Worth every penny."
Confidence on a long flight
"Ten-hour flight to see family. Pre-Anti-Leak I would've been terrified of an in-seat leak. With the panty as backup I just enjoyed the flight. Pouch held — but I had insurance."
No odour, no smell, even after a leak
"The silver-thread layer really works. Had a small leak overnight, got up, rinsed the panty in cold water, washed normally — zero smell after. Better than expected."
Stoma nurse recommended these
"My stoma nurse insisted I wear Anti-Leak for the first 6 weeks post-op. She was right. Caught two overnight leaks in week 2 when my pouch fit wasn't dialled in yet. Thank you SIIL."
Everything you want to know
How much liquid does the gusset absorb?
Should I wear Anti-Leak post-op?
Do they double as period underwear?
How do I wash Anti-Leak?
Will the gusset feel bulky or uncomfortable?
How do I pick the right size?
Will Anti-Leak fit my ostomy pouch?
What if Anti-Leak doesn't work for me?
Sleep without watching the clock.
Live without watching the pouch.
Discreet global shipping. 30-day love-it guarantee. Join +1,800 ostomates who already trust Anti-Leak for high-risk nights and post-op recovery.
Get yours — $41.99Pairs beautifully with
Body Sense
$49.99
Ostomy Wrap Mia Nude
$41.99
Ostomy Panties Sofía
$38.99
Classic Panties Black
$38.99
Classic Panties Nude
$49.99
SIIL Ostomy Belt
$69.99
Ostomy Belt Black
$69.99
Plain Wrap Nude
$41.99

