- High-waist sits above the stoma
- Pouch invisible under clothes
- Parastomal hernia support
- Soft enough for overnight wear
- Breathable antibacterial knit
- Free UK deliveryOrders over £100 · ships in 24h
- 30-day returnsSubject to the return conditions
- Pouch-compatibleColoplast · Hollister · ConvaTec
- Discreet packagingPlain box, your privacy first
"I cried the first time I put these on. After my colostomy I thought I'd never wear everyday underwear again. Sofía sits high above my stoma, the pouch tucks into the pocket, and I look like myself again."
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A high waist and an inner pocket to hold the pouch beneath clothing.
The inner pocket holds the pouch close to the abdomen, keeping it close to the body and helping soften its outline beneath clothing.
The high waist brings fabric around the stoma area and adds coverage over the abdomen.
Black pairs with jeans, dark trousers and evening dresses. An option for the wardrobe you already have.
Skin-safe antibacterial knit stays fresh all day. Machine-wash at 30 °C, lasts 12+ months of daily wear. Hypoallergenic, breathable.
See how to put it on and take a moment to check the fit.
Step into Sofía like regular briefs. The high-waist band starts at your hip and rises above your stoma.
Place your ostomy pouch inside the hidden inner pocket. The pocket holds it flat against the abdomen, no outline.
Pull the high-waist band above your stoma. Smooth the front, adjust if needed. Get on with your day.
- 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.
The inner pocket holds the pouch close to the abdomen, keeping it close to the body and helping soften its outline beneath clothing.
Choose your sizeThe black shade pairs with jeans, trousers and dark dresses, letting you wear the inner pouch pocket beneath those colours.
Shop Sofía
The high waist brings fabric around the stoma area and adds coverage over the abdomen.
Add yours to your bagCream for light clothes, black for dark ones. Same high waist, same inner pocket.
Under a dress
All dayFinally, briefs that fit my life
"I cried the first time I put these on. After my colostomy I thought I'd never wear everyday underwear again. Sofía sits high above my stoma, the pouch tucks into the pocket, and I look like myself again."
Black under jeans is a game-changer
"I wear black jeans almost every day and cream briefs were always visible through the denim. The black tone vanishes completely. So happy I bought multiple pairs — they're now my daily go-to."
High waist saved my back
"My stoma nurse said hernia prevention was crucial after my surgery. The high-waist band gives gentle support exactly where I need it. Eight months in — no hernia, no slippage, comfortable all day."
No leaks under fitted dresses
"Wore Sofía under a slim summer dress to my niece's christening. The pouch was completely hidden — no one could tell. The fabric is so soft I forgot I had it on by midday."
Fits my Coloplast pouch perfectly
"Worried the pocket would be too small for my SenSura Mio drainable bag. Fits beautifully — stretchy, supportive, holds the pouch flat against my body. Bought four pairs."
Wash after wash, still pitch black
"Twelve months of daily wear, machine-washed at 30 °C — the elastic is still firm, the black colour hasn't faded. Best ostomy underwear investment I've made."
Same waist. Different day.
Pieces often worn with the Sofía 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 do I pick the right size?
Measure your natural waist (the narrowest part above your belly button) and your hip at the widest point with a soft tape over light clothing. Use the size guide above the Add-to-cart button. Between sizes? Choose the larger — the soft knit adapts down 4 cm comfortably. We accept exchanges within 30 days if the size isn't right.
Will Sofía fit my ostomy pouch brand?
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 — ileostomy, colostomy and urostomy. The pocket fabric is stretch elastic so it adapts to different pouch shapes and capacities.
Will the black colour show under dark clothing?
No — Sofía Black is engineered to disappear under jeans, black trousers, dark dresses and structured suits. The deep black tone matches dark fabrics so no outline is visible — perfect for evening wear, formal trousers and your favourite dark denim. For white tees or pastel summer linens, switch to Sofía Cream using the colour swatch above.
Does the high-waist actually help prevent parastomal hernias?
Yes. The high-rise elastic band sits above the stoma and provides gentle compression to the abdominal wall, which is designed with up to 75% lower parastomal hernia risk after stoma surgery. Stoma nurses recommend wearing supportive ostomy underwear during all physical activity for at least the first 12 months post-op.
Can I wear Sofía to sleep?
Yes — Sofía is soft and breathable enough for overnight wear. Many customers prefer sleeping in them for all-night pouch security: the high-waist band prevents the pouch from rolling against the skin during sleep, reducing morning leaks.
Will Sofía show under fitted clothing?
No. The knit is smooth and slim, the inner pocket holds the pouch flat against the abdomen, and the high-waist band sits seamlessly under a wide range of trousers and dresses. Customers report being invisible even under fitted summer dresses and slim jeans.
How do I wash Sofía?
Machine-wash at 30 °C on a gentle cycle, inside out, with similar colours. Air-dry flat. Avoid bleach, fabric softener and the tumble-dryer to preserve the elastic and antibacterial finish. With normal care, one pair lasts 12+ months of daily use.
What if Sofía doesn't work for me?
30-day no-questions-asked returns. If the size or fabric isn't right, email hola@siilostomy.com 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.
