What Size Am I in COS? Find the Right Fit with Tellar.co.uk

What Size Am I in COS? Find the Right Fit with Tellar.co.uk

Minimalist, architectural, and often oversized — get your perfect COS fit first time with Tellar.co.uk.

COS, part of the H&M Group, is renowned for its clean silhouettes, premium fabrics, and elevated basics. But many shoppers still ask:

👉 Does COS run big or small?

👉 Should I size down in COS?

👉 How does COS sizing compare to Zara or H&M?

At Tellar.co.uk, we help you cut through the sizing confusion. Enter your chest, waist, and hips, and we’ll show you your ideal COS size, matched to over 1,500 brands using real garment data — not generic charts.

Does COS Run Small or Large?

COS is known for minimalist cuts and intentionally oversized fits. However, sizing still varies based on category and fabric.

🔹 General fit guide:

Tops & Dresses: Often intentionally oversized — some customers prefer to size down for a closer fit
Trousers & Skirts: True to size, with a structured waist; may feel snug without stretch
Tailoring (blazers, coats): Designed for boxy silhouettes, often cut large
Menswear: Relaxed, minimalist cuts — true to size, but generous in width

🧭 Tellar.co.uk adjusts automatically for COS’s style and fit

Real Example: COS Sizing Conversion

If your measurements are:

Chest: 90cm
Waist: 74cm
Hips: 100cm

You may be a UK 10 in most brands.

In COS:

For a standard oversized blouse or dress, Tellar.co.uk may recommend a UK 8
For fitted trousers, you’d likely wear a UK 10 or 12 depending on the waistband structure and rise

📏 Get your exact COS size instantly

COS vs Other Brands: Fit Comparison

Brand	Compared to COS	Fit Notes
Zara	COS runs larger	COS favours looser cuts and longer lengths
H&M	COS is more structured	Both are part of the same group, but COS is upscale
Arket	Very similar	Arket and COS share fabric and fit philosophies
M&S	COS is more fashion-forward	M&S is more classic in shape and sizing
& Other Stories	COS is more oversized	& Other Stories uses more feminine tailoring

🔍 Compare COS to 1,500+ brands with our tool

Why COS Sizing Can Be Hard to Judge

Oversized pieces vary by garment — a size S could feel like a UK 12–14
Structured tailoring may fit more closely at the waist or shoulders
Fabric weight (wool, linen, cotton twill) affects drape and perceived size
Men’s relaxed cuts may feel baggy unless styled deliberately

💡 That’s why Tellar.co.uk uses real data to guide you to the right size — based on fit, style, and body measurements.

🧵 Create your free sizing profile to get accurate recommendations for COS and all your favourite brands.

Why Use Tellar.co.uk for COS?

✅ Converts COS’s size guidance into personalised UK sizing

✅ Works in cm or inches

✅ Supports menswear and womenswear

✅ Includes a free printable measuring tape

✅ Adjusts for oversized, tailored, and structured fits

✅ 100% free — no sign-up needed

🛍️ Find your COS size in seconds

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🟨 Tellar.co.uk — Minimal Effort, Maximum Fit. Find Your COS Size Instantly.