Containers or Shipping containers, Ocean containers
The standard 40 foot long ocean container the size of a 40 foot trailer on a semi truck. The standard size is 40 feet by 8 feet by 8 feet and holds about 5000 pairs of shoes. There is the half size 20 footer and the Extra Large 40 foot High Cube (about 1 foot taller than the standard 40.
This is the standard unit for ocean freight. Top selling shoes are ordered by the full container load.