Next has warned supplies of its products could be delayed if disruption to shipping in the Red Sea continues.
Attacks by Houthi rebels on vessels in one of the world's busiest shipping lanes have resulted in firms avoiding the area and taking longer routes.
Next said if access «difficulties» continue, delays to stock deliveries to the UK were «likely» early this year.
The warning came as the retailer reported better-than-expected sales in the run-up to Christmas.
The bumper festive period led to the High Street giant, which has about 460 shops in the UK and Ireland, to raise its profit forecast by 5% to £960m for 2024.
But it warned of supply chain «risks» in its trading statement on Thursday.
«Difficulties with access to the Suez Canal, if they continue, are likely to cause some delays to stock deliveries in the early part of the year,» the retailer said.
Next is not the first company to warn of issues in receiving goods and products, with global supply chains facing disruption as a result of the world's biggest shipping companies diverting journeys away from the Red Sea.
Furniture giant Ikea said last month supplies of some of its products could also be delayed..
Assaults by Houthi rebels in Yemen on commercial vessels in recent weeks have resulted in many firms deciding to avoid one of the world's busiest shipping lanes, which sees vessels pass through the strait of Bab al-Mandab — a 20-mile wide channel that splits Eritrea and Djibouti on the African side and Yemen on the Arabian Peninsula — and then Egypt's Suez Canal further north.
The Houthi group has declared its support for Hamas and has said it is targeting ships travelling to Israel, though