The market is still in its early stages, says Plantenga. He expects second-hand clothing to account for half of the total fashion market in the long run. Boston Consulting Group takes a more cautious stance and predicts a share of more than 25 per cent by 2023. The American second-hand platform ThredUp went public in March and has seen its share price rise by 34 per cent since then. More and more traditional retailers, from H&M to Zalando, are also venturing into the second-hand market.