When Montreal native Sim Khan, 33, practiced banking law in Washington, he had trouble finding suits to fit his slender frame. The baby-faced lawyer didn’t want to look like a kid in his dad’s baggy suit, he says, so he turned to local tailors to create slim, British-style menswear for him. “It was about getting juries to respect me, to value my opinion, and those sharp suits really helped,” says Khan. Friends started asking him for sartorial assistance, so he founded his own haberdashery company, Brimble & Clark, in 2011, leaving his law firm in 2014. The concept is simple: Customers make an appointment to visit Khan’s clubby showroom in Mount Vernon Triangle or have reps come to them; they go through fabrics, get measured and then, six to eight weeks later, receive a bespoke British suit. Khan’s wares have been a hit with local doctors, lawyers and newscasters, plus sports and entertainment figures such as former D.C. United player Chris Pontius and DJ and rapper Diplo. Clients often choose throwback looks that Khan excels at, such as the patterned suits seen here. “They’re a real Cary Grant look that conveys authority, particularly if you wear them with a double-breasted vest.”