Our advice

For Shein, trust the specific garment measurements. For Zara, read the fit. If unsure, compare bust, waist and hips first.

GarmentSheinZaraSIZES tip
DressesHighly variable by seller and fabricMore consistent within collectionsCheck waist, bust and stretch
TopsCan be short or very fittedDepends on basic, cropped or fitted cutDo not rely only on S/M/L
JeansDetailed measurements, but reviews helpRecognizable fits with style differencesPrioritize waist and hips
JacketsWatch shoulders and sleevesMore predictable in casual tailoringMeasure a jacket you already wear

Why this comparison needs care

Shein includes many suppliers and patterns, so an M does not always mean the same thing. Zara is more consistent as a brand, but each garment fit still matters.

What to check before buying

For Shein, read the specific product size chart, not just the general guide. Look at photos, fabric and stretch. For Zara, check whether the item is slim, regular, wide, cropped or fluid.

SIZES tip: use this guide as a practical reference and always confirm the official brand size chart when the garment includes its own measurements.

How to use SIZES

Save your base measurements and note which sizes worked by brand. Next time, you compare the new garment with your own references instead of guessing.

Final recommendation

With Shein, decide by centimeters. With Zara, combine measurements with fit. In both cases, avoid choosing only by your usual size.

FAQ

Does Shein run small?

There is no single answer because it depends heavily on the garment and supplier. Exact measurements matter.

Can I use my Zara size in Shein?

It can guide you, but it should not be your only reference. Compare bust, waist and hips.

What should I save in SIZES?

Bust, waist, hips, height and notes by brand or garment type help you decide faster.