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The modern obsession of sneaker collecting

Sneakers, or trainers as they're known in the UK, have spawned a multi-billion-dollar market around the globe. But how did a practical sports shoe make the leap to become a highly desirable and highly collectible fashion item?

Brendan Dunne, collector and co-host of the Full Size Run podcast, provides us with a potted history.

Produced by Howard Timberlake & Natalia Guerrero