Find Your Perfect Ostomy Belt Size

Waist (at stoma level)

If you're between sizes, size up for comfort. The belt should not be too snug, as a tight fit may cause the belt to roll up.

Brand Size	US Size	Waist (in)
XS	60–75cm	23.6 – 29.5
S	75–87cm	29.5 – 34.3
M	88–97cm	34.6 – 38.2
L	98–108cm	38.6 – 42.5
XL	109–118cm	42.9 – 46.5
XXL	119–129cm	46.8 – 50.8
3XL	130–140cm	51.2 – 55.1

Shipping & Return Guidelines

Shipping

Region	Free Shipping Threshold	Standard	Express
USA	100€	7–14 days	4–6 days
Europe	100€	–	4–6 days
Spain	40€	–	1–3 days

Extra fees: Canary Islands (~18€ DUA + 7% IGIC), Ceuta/Melilla (~18€ DUA + 7–10%)

Returns

Return within 14 days. Must be unused, with labels and hygiene seals intact. Panties, belts, bodysuits are non-returnable.

Return Instructions

Email hola@siilostomy.com. Shipping back is at your cost. Non-EU countries: duties must be prepaid.

Size Change

Email us with order info. Same conditions as return apply.

Defective Products

Send photo & description. We will review and advise next steps.

Find Your Perfect Ostomy Wrap Size

Waist Measurement

*All SIIL Ostomy sizes are equivalent to your usual clothing size.
Clothes are designed to fit your body without compressing your stoma.
Stretchy garments allow flexibility. If you prefer looser fit, choose one size larger.

SIIL Size	Waist (cm)	Hip (cm)	EU	UK	US
XS	58–65	84–90	34–36	8–10	4–6
S	66–72	91–95	36–38	10–12	6–8
M	73–80	96–100	38–40	12–14	8–10
L	81–88	101–108	40–42	14–16	10–12
XL	88–99	109–115	42–44	16–18	12–14
XXL	100–112	116–126	44–46	18–20	14–16

Women (Wraps, Panties and Bodies)

SIIL Size	Waist (cm)	Hip (cm)	UE Equivalency	UK Equivalency	US Equivalency
XS	58-65	84-90	34-36	8-10	4-6
S	66-72	91-95	36-38	10-12	6-8
M	73-80	96-100	38-40	12-14	8-10
L	81-88	101-108	40-42	14-16	10-12
XL	88-99	109-115	42-44	16-18	12-14
XXL	100-112	116-126	44-46	18-20	14-16

*All SIIL Ostomy sizes are equivalent to your usual clothing size. Clothes are designed to fit your body without compressing your stoma. When selecting your size, keep in mind that the garments are stretchy. If you like to wear looser fitting garments, we suggest choosing a size larger than yours, keeping in mind that the waistband will have a softer fit to your body.

SIIL Ostomy Belt (Only)

Size Guide

Bikini Top Size Chart

Size	Underbust (cm)	Underbust (in)
XS	80–85	31.5–33.5
S	85–90	33.5–35.5
M	90–95	35.5–37.5
L	95–100	37.5–39.5
XL	100–105	39.5–41.5
XXL	105–110	41.5–43.5