Dyeing the thick canvas is a very laborious process. At The King, the fabric is dyed not just on the surface, but is thoroughly soaked in the dye and then thrown in boiling water to make sure it is colorfast.
布料較厚，染色自然也相當耗工，它們的帆布不是只染表面，而是整塊布料浸在染料中染；染好後再丟進 100 ℃的滾水測試，以確保書包洗過後也不會褪色。