TONNEAU COVER ASSEMBLY WITH A FLUID MANAGEMENT SYSTEM

A support member configured for placement on a top surface of a bed wall defining a cargo area of a vehicle and below a bed cap so that the support member is stacked at least partially in between the bed cap and the top surface of the bed wall; and a bed cap assembly having a support member configured for placement on a top surface of a bed wall defining a cargo area of a vehicle; and a bed cap configured for placement on the support member so that the support member is stacked at least partially in between the bed cap and the top surface of the bed wall.