COS vs Zara

How the sizing compares

Zara outerwear pieces run smaller than COS — about 3.2cm tighter at the same letter size. If you wear a medium at COS, consider sizing up at Zara.

Size conversion

outerwear · chest
COSZara
XS · 86cmXS · 84cm
S · 90cmS · 88cm
M · 96cmL · 98cm
L · 102cmXL · 104cm
XL · 108cmXL · 104cm

Zara outerwear pieces run smaller than COS — about 3.2cm tighter at the same letter size. If you wear a medium at COS, consider sizing up at Zara.

tops · chest
COSZara
XS · 82cmXS · 80cm
S · 86cmS · 84cm
M · 92cmL · 94cm
L · 98cmXL · 100cm
XL · 104cmXL · 100cm

Zara tops run smaller than COS — about 3.2cm tighter at the same letter size. If you wear a medium at COS, consider sizing up at Zara.

dresses · chest
COSZara
XS · 82cmXS · 80cm
S · 86cmS · 84cm
M · 92cmL · 94cm
L · 98cmXL · 100cm
XL · 104cmXL · 100cm

Zara dresses run smaller than COS — about 3.2cm tighter at the same letter size. If you wear a medium at COS, consider sizing up at Zara.

bottoms · waist
COSZara
XS · 64cmXS · 62cm
S · 68cmS · 66cm
M · 74cmL · 76cm
L · 80cmXL · 82cm
XL · 86cmXL · 82cm

Zara bottoms run smaller than COS — about 3.2cm tighter at the same letter size. If you wear a medium at COS, consider sizing up at Zara.

Mapped on the primary measurement from each brand's real size chart — a starting point. For a read tuned to your full proportions, build your size on either brand below.

COS vs Zara — common questions

Is COS sized like Zara?

Zara outerwear pieces run smaller than COS — about 3.2cm tighter at the same letter size. If you wear a medium at COS, consider sizing up at Zara.

Does COS run bigger than Zara?

Yes — COS runs bigger. Zara is cut about 3cm tighter at the same letter, so size up moving from COS to Zara.

If I wear a medium in COS, what size am I in Zara?

A medium in COS maps closest to size L in Zara on their outerwear chart (96cm vs 98cm on the primary measurement). It's a starting point — build your exact size for a read tuned to your full proportions.

Full COS sizing guide →Full Zara sizing guide →