Fast-fashion giants Shein and Temu have announced plans to raise prices for United States customers starting April 25.

The decision comes in response to a new wave of tariffs imposed on Chinese imports under former President Donald Trump’s trade policies.

According to the Associated Press, the new measures include a 145% tariff on Chinese-made goods and the removal of a long-standing customs exemption that allowed items valued under $800 to enter the U.S. without duties. This exemption has facilitated the daily entry of nearly 4 million parcels, the majority of which come from China.

Both Shein and Temu, which have surged in popularity across the U.S. thanks to aggressive influencer marketing and low prices, are now facing significant disruptions to their business models.

The Wall Street Journal previously reported that Amazon views the Chinese retailers as greater competitive threats than traditional players like Walmart and Target. In response, Amazon launched “Amazon Haul” last November — a discount-driven storefront aimed squarely at Shein and Temu’s customer base.

Despite the looming price hikes, Shein and Temu have urged customers to keep shopping. The companies say they are working to minimize the impact of the tariffs and have committed to maintaining timely delivery of orders.