SIIL vs Comfizz UK: Which Stoma Support Wear Fits You Best? (2026)

Quick answer: Comfizz and SIIL Ostomy solve the same problem — comfortable, supportive clothing for life with a stoma — with different philosophies. Comfizz (UK, 25+ years) is function-first: a clear three-level support system, junior sizes and NHS prescription availability in England, Wales and Scotland. SIIL is fashion-first: high-waisted underwear, swimwear and belts designed to look like premium fashion basics, sold in five languages with worldwide delivery. If you have a prescription route, Comfizz is the sensible starting point; if you want your support wear to look and feel like fashion, SIIL is built for exactly that.

If you've been researching stoma underwear or support wear in the UK, you've met both of these names. Both are specialist brands run by people who genuinely understand life with a stoma bag. So instead of pretending there's one "best" answer, here's an honest comparison — including where Comfizz beats us.

The two philosophies

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Comfizz has been making stoma support wear for over 25 years and has sold more than 700,000 garments. Their range — support briefs, boxers, waistbands, belts, leggings, tops and swimwear — is organised around a three-level support system: Level 1 (light), Level 2 (medium) and Level 3 (firm). It's a genuinely clever approach: you match the garment to the day, not the other way round. And crucially for UK readers: Comfizz garments are available on NHS prescription in England, Wales and Scotland.

SIIL Ostomy started from a different question: what if stoma clothing looked like something you'd buy anyway? The result is high-waisted underwear, swimwear for women and men, wraps and a stoma belt designed with the fit philosophy of premium shapewear — hold the bag flat, clear the stoma, and look like fashion. The range is worn by 40,000+ ostomates worldwide with more than 8,000 five-star reviews.

Side-by-side

	SIIL Ostomy	Comfizz
Design philosophy	Fashion-first — looks like premium basics	Function-first — seamless, practical
Support approach	High-waisted hold + optional belt layer	Three defined levels (light/medium/firm)
Junior sizes	No	Yes
NHS prescription	No — retail	Yes — England, Wales & Scotland
Store languages	5 — EN, ES, FR, DE, EN-GB	English (separate German site for EU)
Delivery	Worldwide, free over $100 (≈£80)	Global reach from UK base
Community & reviews	40,000+ ostomates, 8,000+ five-star reviews	700,000+ garments sold, 25+ years

Where Comfizz genuinely wins

NHS prescription. If you're in England, Wales or Scotland and eligible, Comfizz garments on prescription cost you nothing. Ask your stoma care nurse or GP — that's hard to argue with.
The support-level system. Choosing light, medium or firm hold per garment is the clearest sizing logic in the niche.
Junior wear. Very few brands make support garments for children and teens. Comfizz does.
Track record. 25+ years and 700,000 garments is real heritage.

Where SIIL wins

It looks like fashion. SIIL garments are designed to be clothes first — nobody at the beach or in the changing room will read them as support wear.
Swimwear for women AND men designed as fashion swimwear, plus wraps and lingerie — the "I still want to feel like me" end of the wardrobe.
Shopping in five languages — handy if you're buying for family abroad.
Worldwide retail logistics with UK-friendly delivery.

So which should you choose?

Choose Comfizz if you have an NHS prescription route, you want granular control over support firmness, or you're buying for a junior.

Choose SIIL if you want support wear that reads as fashion, you want matching swimwear and lingerie, or you're shopping for pieces prescription ranges simply don't cover.

Plenty of UK ostomates end up with both in the drawer: prescription basics for everyday, fashion pieces for the days that matter. That's not indecision — that's a wardrobe.