Mixing prints can really scare people because we are often taught to steer clear of doing so. My rule for pattern mixing is to keep the color schemes similar. With this look, I kept the colors to a simple black, white, and red.

Top: Hurley (old, similar here),  Pants: Candie's,  Shoes: Rock & Republic (old, similar here)

Sunglasses: Forever 21,  Bag: Asos (Old, similar here)