Abstract: An absorptive cap liner for absorbing sweat includes a principal band having an outside, an inside, an upper perimeter, and a lower perimeter. The principal band is configured to fit within a sweatband of a baseball cap. A plurality of support bands is coupled to the principal band. Each of the plurality of support bands has a lower end coupled to the principal band and an upper end. A top pad is coupled to the upper end of each of the plurality of support bands and is configured to rest atop a wearer's head within the baseball cap. Each of the principal band, the plurality of support bands, and the top pad is an absorptive material.