Women may have Milan and Paris but London is undeniably menswear’s global capital and the most important street in this world is Savile Row, a modest Mayfair row of the men’s tailors that quite simply make the best bespoke and made-to-measure suits in the world – so much so that today, the Japanese for suit is "sabiro" (say it out loud).

Of course, what the street is best known for is being the undeniable home of hand-crafted British bespoke - so called because when customers used to choose their cloth it was said to "be spoken for". But over the past two decades, an influx of international designer labels have opened up the street's offering to also include ready-to-wear and made-to-measure suiting. Basically, it’s the go-to hub for any man who’s serious about formal dressing.

While purists sometimes eye these newcomers with caution, this means that if you can't stretch to buying bespoke there are now far more options open to every budget. The trick is knowing who is best tailored to you (pun intended). Though the street of options seems endless, we’re here to help you out.

Here is GQ's guide to everything you need to know about buying a men's suit on London's most stylish street, from the best tailors and their various house specialities to hints, tips and insider info about each outpost. And if you’re looking for further advice on specific suit styles, our tuxedo, wool, lounge, velvet and linen guides are sure to suffice your seasonless needs.

Now, for a trip up the Row...