Your next pair of sneakers might soon come with a much higher price tag. In a bold and controversial trade move, former President Donald Trump has announced sweeping new tariffs—part of what he calls a “reciprocal” trade policy.

The world’s largest footwear and apparel companies are facing a shock to their supply chains after President Donald Trump targeted Vietnam, a critical production hub, with tariffs this week.

Having taken the hint from Washington and moved production out of China to Viet Nam, apparel and athletic goods makers are blindsided by tariffs.