Even at the height of menswear's anything-goes era, the best slim suits for men held steady. Why? Simple: A good suit shouldn’t do any more than you ask of it. What does that mean, exactly?

Stephen Amell is starring in the highly-anticipated Suits: LA, and he can be seen on TV every Sunday night on NBC. But ahead of the Suits spinoff airing on the small screen, folks got to see the ...