11. Taekwondo is traditionally performed in bare feet, although martial arts training shoes may sometimes be worn. 12. But by the 1990s, the company had decided to focus on running, walking, and cross-training shoes . 13. Nazi symbols have been used to market other products from athletic training shoes to motorcycle helmets. 14. Sales of children's and cross-training shoes rose substantially, while sales of basketball and leisure footwear declined. 15. The " adicolor " sneaker was an all-white training shoe was specifically created for the adicolor concept. 16. Training shoes will generally be heavier, with thicker soles and higher heels, than shoes made for competition.17. He pulls out a cross-training shoe . 18. Sales of men's training shoes rose 57 percent and women's fitness shoes increased 79 percent, the company said. 19. _Adidas cross-training shoes , Sport-Mart, $ 49 20. The ads tout Griffey's first signature shoe for the Beaverton, Ore .-based company, the Air Griffey Max cross-training shoe .