Everyone loves custom stuff, especially those thieves at the airport, who're totally smoking your Cubans while playing on your elephant ivory swing set. For custom threads that won't get confiscated: Sebastien Grey.
From a trio of cloth workers with a combined 60+ years in the biz, SG's a fresh bespoke clothier (avail in three locations of Halo for Men) heavily influenced by the genteel tradition of old-school British tailors, because nobody likes tailor hicks. The suiting process starts with a consultation during which they'll suss your style, present dozens of fine wool fabrics procured from Italy/ France/ Belgium, and measure your every proportion, sizing you up for anything from a three piece suit, to a tux, to a cashmere suit (but not a Kashmir suit, as those can only be pulled off by people with a certain Bonham-ie). They'll also school you on options including contrast buttonhole stitching, monogram placement, and pockets for everything from an iPad to a cigar, a clever dodge if you're constantly excited to see people.
A few weeks later they'll bring you in for a final fine tuning, and send you off with bonus tips on everything from dry cleaning, to shoe shining, to proper tie tying -- ignore their advice, and risk looking like a total Jungle Jim...made of shark penises.