Trends come and go, but a well-tailored suit is an enduring staple. "A good suit knocks off the years and the pounds," says Jeremy Langmead, the resident expert at new luxury e-commerce site Mr Porter. Or, as author and fashion historian James Sherwood puts it: "A superbly cut suit and good manners get you the upgrade on Virgin Atlantic and the best table at Monkey Bar or Duke's. People raise their game when dealing with someone in alpha-male bespoke." And don't skimp on the proper trimmings. The devil's in the proverbial details when it comes to ties and shoes, cuff links and shirting. The Hamilton button-up, above, for example, consists of 10 pieces hand-cut with a blade (the brand has been doing it this way since 1883). For the pages that follow, we've consulted our stable of experts to offer a comprehensive guide to buying, altering, and accessorizing, paying special attention to the importance of custom-made luxuries in an off-the-rack world. So read on, and don't be afraid to splurge a bit. As designer and suit authority Simon Spurr attests, spending the extra dough will show. Read more:The Bespoke Bible James Sherwood's definitive suit guide celebrates the history of made-to-order. All Eyes on Neck Three Collars, three occasions. Simon Spurr on Suiting Up The fashion designers tips for finding and wearing the perfect suit. Born in the U.S.A Key fashion brands that keep their business decidedly at home. What's Your Strong Suit? Experts weigh in on three new propositions for the blazer. Wrist Assured When -- and how -- to work cuffs.