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- The inner pocket holds your pouch close.Pouch stays close
- A gusset that holds up to 175 ml.Up to 175 ml
- High waist, under your clothes.High waist
- Standard shipping $5.95Free from $50 · ships in 24h
- 30-day returnsFirst size exchange free
- Pouch-compatibleColoplast · Hollister · ConvaTec
- Discreet packagingPlain box, your privacy first
"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."
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The pocket holds the pouch. The gusset is there if something gets past it.
Getting dressed, making the bed, packing a bag. The same beige brief.
Choosing an outfit
Fresh sheets
Weekend away
Watering the plants
Catching up
At the easelPut it on like any high-waist brief. The pocket holds the pouch. The gusset is the backup.
The fabric against your skin carries moisture down into the gusset.
Silver thread plus an absorbent core. The gusset holds up to 175 ml.
The outer layer keeps what the gusset catches off your clothes.
- New Ostomy Patient Guide What to expect in your first 30 days — surgery to confidence.
- Stoma Care Playbook Daily routine, leaks, irritation, supplies, travel — solved in plain language.
- Nutrition Guide What to eat to thicken output and prevent leaks. Day, week, swim-day.
A pocket for the pouch, and a gusset for what gets past it.
Four layers. If something gets past the pouch, it stays in the gusset instead of reaching your clothes.
Choose your size
Wear it to bed the same way you wear it in the day. The gusset is still there.
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The same gusset is there for menstrual flow on light to medium days.
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The inner pocket holds the pouch close under dresses and jeans.
Add yours to cartSaved 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."
Same waist. Different day.
Pieces often worn with the Anti-Leak panties
Measure your natural waist and hip with a soft tape over light clothing.
| Size | Waist (in) | Hip (in) | Best for |
|---|---|---|---|
| XS | 22.8–24.8 | 33.1–34.6 | EU 34–36 · Petite |
| S | 25.2–27.6 | 35.0–36.6 | EU 36–38 · Slim |
| M | 28.0–29.9 | 37.0–38.6 | EU 38–40 · Most common |
| L | 30.3–31.9 | 39.0–40.6 | EU 40–42 · Curvier |
| XL | 32.3–33.9 | 40.9–42.5 | EU 42–44 · Plus |
| XXL | 34.3–35.8 | 42.9–44.5 | EU 44–46 · Extended plus |
Everything ostomates ask before their first SIIL panties.
How much liquid does the gusset absorb?
Up to 175 ml — equivalent to roughly one full ileostomy pouch. The 4-layer absorbent core has a waterproof outer membrane that prevents any seepage to clothing, sheets or skin. This works for both pouch leaks and menstrual flow on light to medium days.
Should I wear Anti-Leak post-op?
Yes — many stoma nurses recommend wearing Anti-Leak panties for the first 4–6 weeks after stoma surgery. The high-waist band sits above the surgical site without rubbing, 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, layer with a tampon or menstrual cup; the panty acts as backup protection against unexpected leaks. One garment for two body experiences (ostomy + period).
How do I wash Anti-Leak?
Rinse in cold water immediately after wear (this preserves the absorbent core's capacity). Then 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 the gusset feel bulky or uncomfortable?
No — the 4 layers are slim (about 4 mm total) and integrated seamlessly. Most customers report forgetting they're wearing them. The fabric is soft, breathable, antibacterial silver-thread; the gusset shape contours to the body without bunching or rubbing.
How do I pick the right size?
Measure your natural waist (the narrowest part above your belly button) and your hip at the widest point. Use the size guide above the Add-to-cart button. Between two sizes? Take the smaller one. Your first size exchange is free. We accept exchanges within 30 days.
Will Anti-Leak fit my ostomy pouch?
Yes — the hidden inner pocket is sized to fit one-piece and two-piece pouches from Coloplast, Hollister, ConvaTec, B. Braun, Pelican, NuHope, Marlen and Welland. The pocket fabric is stretch elastic so it adapts to different pouch shapes and capacities — ileostomy, colostomy and urostomy.
What if Anti-Leak doesn't work for me?
30-day no-questions-asked returns. If the size or fabric isn't right, email [email protected] and we'll refund or exchange. Used items are accepted for hygiene-relevant ostomy underwear — we re-process all returns through our medical-grade hygiene protocol.