Stylish and naturally tough, leather is viewed as the quintessential material for motorcycle jackets. While riders wearing plain (or emblemed) leather jackets is a common (and expected) sight atop cruisers and tourers, the same can’t be said for those on sport bikes. If V-twin riders are all about the classic, understated black- or brown-leather look, sport bike riders prefer to carry over some of the bright colors and bold styling from their rides into their gear.