Colortrak Processing Caps Xxl 10-pk The XXL Processing Cap by Colortrak comes in a pack of 10 and is sure to become a staple at every salon that caters to all hair types. It is the largest cap available in the industry and just like a traditional processing cap, our XXL version processes, conditions and easily holds thick, voluminous hair. It has an elongated design to accommodate every single strand and a soft stretchy band that comfortably fits all head sizes.