Once the go-to gear for college football teams, the Letterman jacket has now become the uniform for streetwear aficionados. This one from Nike's Authentic collection has got that vintage vibe, made with the same old-school materials that made the classic so tough and long-lasting - think thick wool fabric, full-grain leather, the works. Plus, it's got a press-stud front closure and insulation that laughs in the face of chilly weather.