Yes, Delta One passengers on long-haul international flights are provided with slippers as part of the premium amenity suite. In 2026, Delta has expanded its partnership with the luxury Italian fashion house Missoni to provide an upgraded bedding and amenity experience. This includes a high-quality amenity kit, a plush duvet, and branded slippers designed for use during the flight. These slippers are intended to help passengers feel more comfortable and "at home" in the cabin, allowing them to remove their shoes for better circulation without having to walk on the carpet in socks. On ultra-long-haul flights (over 12 hours), Delta also provides a memory foam "cuddle pillow" and a mattress pad to further enhance the sleep experience. While slippers are a standard feature on international Delta One routes to Europe, Asia, and South America, they are not always guaranteed on shorter "domestic Delta One" routes (such as JFK to LAX), where the amenity kits might be slightly scaled down depending on the specific flight duration and aircraft type.