The Matrix Deluxe Seat Cushion Unit is designed to provide long-term seating comfort and stability when using a Matrix Seatbox. It is made of durable materials (45% polyester, 55% PVC) and finished with a black PU coating that is abrasion-resistant. The polyurethane padding consists of multiple layers of high-density foam, providing gradual compression and optimal comfort, while the built-in level helps to perfectly level the seatbox. In addition, the cushion features a flexible pole support cup, making it versatile and helping to improve rod support while fishing.