Simply put, Bo Jackson was the man. He not only played two sports at the professional level, but he played them extremely well. And, because of his versatile athletic ability he was the perfect person to represent Nike cross trainers. The Air Trainer II, one of Jackson's signature models, is also one of the most popular. It sports the signature strap, a large sidewall for stability, and a snug-fit lace locking system. Plus, now it's available in fresh "never seen before" colorways.