We revisited the Calistra, an early-noughties trainer, and gave her a new life by sitting the low-profile, ballet-inspired flat on top of sleek Shox Z cushioning. Luxury echoes through the shoe with its moulded synthetic leather upper, adjustable strap and clean, minimalistic palette. Benefits * Moulded synthetic leather offers durability and a unique look * Nike Shox columns provide resilient cushioning.