Size guide

The right size in Ralph Lauren depends on two main things: the size on the label, and the fit of the piece.

Two pieces in the same size won't necessarily sit exactly the same. The difference comes mostly from the fit, the type of garment and the fabric it's made of.

So it's worth checking both the size and the fit on the product page before you choose.

Ralph Lauren fits

Classic Fit

The roomier fit. It's cut with more room through the chest and waist, for a classic, relaxed look.

If you like a shirt to sit a little loose rather than close to the body, this is usually the better fit.

Custom Slim Fit

Ralph Lauren's in-between fit.

It's more tailored than Classic Fit, mainly through the waist, but still comfortable rather than tight.

Slim Fit

The narrowest, most tailored fit.

It sits closer to the body, with less volume through the chest and waist. For anyone who prefers a slimmer, sharper look.

How to choose your size

If you already have a Ralph Lauren shirt that fits you well, check the size and fit on its label. That's the best reference point for the pieces on the site.

For example, if you usually wear M in Custom Slim Fit, looking for that same combination of size and fit will give you a better starting point than the size alone.

If you move between fits, bear in mind that the same size can feel different on the body.

Fit by garment type

Polo shirts

In a polo, the fit makes a big difference. Classic Fit will feel roomier, while Slim Fit sits closer to the body.

Button-downs

With button-downs, pay particular attention to the fit. A tailored model can feel narrower through the chest and waist even when the size matches another of the brand's shirts.

Knitwear

Knitwear usually allows a little more give in the fit, though that varies with the yarn and the structure of the knit.

Linen

Linen tends to soften with wear and washing, but it isn't a stretchy fabric. Choose by the size and fit you usually wear rather than counting on it to give much.

Sizes in the collection

Our collection includes pieces in sizes:

You can filter by size directly on the category pages.

A simple rule for choosing a size

Know your Ralph Lauren size? Start from it, then check the fit.

The size tells you where to start — and the fit tells you whether the piece will sit relaxed, regular or more tailored.