The Southeastern Class 395 coach pack consists of four coaches carrying the new 2025 Southeastern train livery. These four coaches accompany the Class 395 Train Pack to create one full unit of six. The Class 395s run in six-car trains but can also be run in twelve-car units.

The ‘Javelin’ is part of the Hitachi AT300 family of dual voltage trains used for high-speed commuter services along HS1 between London St Pancras and Ashford, along with other key routes under the SouthEastern franchise. Twenty-nine six-car sets were delivered from Hitachi’s Kasado Works in Japan between 2007 and 2009. 

Running on the 750v DC third-rail supply, they can attain speeds of up to 100mph (160km/h), and on 25kV AC power overhead lines, 140mph (225km/h). Set 395015 has received special vinyl coverings to mark the 200th anniversary of the first passenger train to be hauled on a public railway.