Allegedly workers at one of the factories are paid around £1 a day for a twelve hour shift.
A special Inside Out programme filmed workers in Laos making clothes for his Sports Direct stores.
The factory had one sealed air conditioned room to keep cool a computerised sewing machine which was embroidering dozens of Lonsdale logos.
Elsewhere on the site hundreds of people were in long production lines in the heat sewing clothes together ready to be shipped to Mike Ashley's UK stores. They were bagged up - and amazingly even had a 70% discount sticker already added before they left the factory.
The manager told the undercover reporters that his factory did not meet the internationally accepted standards for garments workers - known as the SA 8000 standard.