Size guide

The chart below shows general body measurements per size. Individual pieces can fit differently — always check the product page for piece-specific measurements before ordering.

General body measurements — XS to XXL

Size	UK	EU	Bust (cm)	Waist (cm)	Hips (cm)
XS	6	34	78–82	60–64	86–90
S	8	36	83–87	65–69	91–95
M	10	38	88–92	70–74	96–100
L	12	40	93–98	75–80	101–106
XL	14	42	99–104	81–87	107–112
XXL	16	44	105–110	88–94	113–118

These are general body measurement ranges, not garment measurements. Always cross-check with the size details on each product page.

How to measure

Bust

Measure around the fullest part of your bust, keeping the tape level.

Waist

Measure around the narrowest part of your natural waist (above the belly button, below the rib cage).

Hips

Measure around the fullest part of your hips, usually about 20 cm below your natural waist.

Between sizes?

• Leggings & bottoms — if you prefer a relaxed fit, you may want to size up
• Sports bras — size based on bust measurement and the fit you prefer
• Tops & tees — size up for a looser look, true to size for regular fit

Still unsure?

Email support@alviaactive.com with the piece you're interested in and your usual UK size — we'll do our best to advise. Customer support is open Monday to Friday, 9:00–17:00 GMT.

If a piece doesn't fit once it arrives, see our Refund policy for 30-day returns.