A fresh era of footwear arrives as Balenciaga turns the humble act of getting ready into a high-fashion event. Pierpaolo Piccioli delivers a double-hit of innovation with the Radar and Triple S.2 trainers, arriving just as the world looks for a new way to balance performance with a bit of personality. Actress Yao Chen, football star Hugo Ekitike and pop icon Katy Perry headline the launch,…