Army Surplus Clothing. Army Surplus clothing is used clothing that it is no loger needed by the Army, Navy or Airforces of the world. We mostly offer British Army surplus clothing to our customers. Grade 1 is a definition used within the military surplus trading world its meaning is used but not torn or worn out but may be slightly faded in colour. The size range is measured in centimetres for example a 180/96 smock would mean the chest size is 96cm and the Hieght being 180cm this would normally be approximately a medium/large size in british high street sizes. Trousers, fleeces, jumpers, smocks and jackets are all available in this section.