If the latest street-style snaps are anything to go by, logomania is here to stay. The coolest way to work the trend? With a logo sweatshirt. Now a staple in every off-duty closet, this piece comes in every style you can think of: choose a classic sportswear design by adidas or Champion, make a statement with a graphic version by Gucci or Balenciaga, or keep it low-key with understated styles by Acne Studios and PACCBET.