ActiveX ™ Seating Material. ActiveX is a high end synthetic seating material that is designed to fit perfectly into your active lifestyle, with its durability, stain resistance and ability to maintain a premium look and feel. Standard with the Fusion SEL.
BOF has a thread on this seating surface: https://blueovalforums.com/forums/index.php?/topic/65256-activex/
2019 comment from the Expedition Forum: “It looks like vinyl, but most can’t tell the difference and it’s pretty comfortable and supportive. It feels softer than vinyl if that makes sense. It doesn’t have the natural grains that come with genuine leather and isn’t as quite as nice to the touch. Besides that it beats vinyl, most of the seat is vinyl but the ActiveX synthetic is the center portions. It’s all “trimmed” same as the higher end leather.”