Ralph Lauren Size Guide: Find your perfect fit

Introduction

• Ralph Lauren, synonymous with American elegance, covers every part of the wardrobe: polos, shirts, jeans, sweaters, casual wear, and even suits. To enjoy the comfort and style of the brand, choosing the right size is essential.
  Discover our Polo Ralph Lauren clothing 
• Polos ·
• Shirts ·
• Sweatshirts ·
• Trousers ·
  

Does Ralph Lauren run large or small?

In general, Ralph Lauren fits:

• A bit large for classic collections (Polo Ralph Lauren).

• True to size to fitted for modern lines (Slim Fit, Custom Fit).

Cuts vary by range (Classic Fit, Custom Slim Fit, Slim Fit…).
To do before buying:

• Refer to the measurement guide below.

• Check the origin US vs EU (US sizes can appear more generous).

Men's Polos (Classic/Custom/Slim) ·

Oxford/Poplin Shirts ·

Sweatshirts & hoodies

Men's sizes — polos, shirts, sweatshirts

• Custom Fit: intermediate Slim ↔ Classic (balanced).

• Slim Fit: fitted, close to the body (ideal under a jacket).

• Classic Fit: loose & comfortable, sleeves often longer.

Men's Polos (Classic/Custom/Slim) ·

Oxford/Poplin Shirts ·

Sweatshirts & hoodies

Women's sizes — polos, dresses, shirts

🔎 Tip: some tailored models (dresses, blouses) run close to the body — if you are between two sizes, opt for the larger size.
Polos  · 

Ralph Lauren Jeans & trousers (US → EU)

Jeans/trousers are often sized the American way:

• Waist in inches (e.g., W30 ≈ 76 cm).

• Inseam in inches (e.g., L32).

Quick conversion:

 

Chinos & trousers and Joggers

Blazers, coats, suits

• EU sizes 44 → 58 (men's).

• Regular suit: take your usual size.

• Slim cuts: one size up may be more comfortable depending on body type/shoulders.

• Jackets are often semi-fitted, with alterations possible (shoulders/sleeves) — check in-store.

Coats & parkas

Practical tips (to keep handy)

• ✔️ Check the fit (Slim / Custom / Classic) on the product page.

• ✔️ Check the US/EU origin.

• ✔️ Take your measurements (tape measure) + compare to a reference garment.

• ✔️ If in doubt about a tailored piece, go up one size.
  

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FAQ — Ralph Lauren sizes

Does Ralph Lauren tend to run large?
The classic lines (Polo RL) can feel a bit generous; the Slim/Custom cuts fit more true to size.

Classic Fit vs Custom Slim Fit vs Slim Fit: which one to choose?

• Classic: comfort & fullness (timeless).

• Custom Slim: modern middle ground.

• Slim: fitted, perfect under a blazer.

How do I convert a US jean size to an FR size?
Add ~8: W32 ≈ FR 40 (see chart). Also check the length (L30/L32/L34).

Are US and EU sizes identical?
Not always: a US reference can run larger. Check the product page and reviews.

I am between M and L: what should I get?
For Slim polos/shirts, take L for room in the shoulders/biceps. For Classic, M may suffice if you like it fitted.