Tail Mate GelCore Seat Cushion Mossy Oak. Its core is made of Memory foam and covered with a durable Mossy Oak zippered cover. Specifications for Tail Mate GelCore Seat Cushion: Manufacturer: Tail Mate Color: Mossy Oak Size: One Size Features of Tail Mate GelCore Seat Cushion: 14" x 16" x 3" Framed memory foam core Water resistant includes carabiner and straps Zippered cover Mossy Oak Package Contents: Tail Mate GelCore Seat Cushion Tail Mate GelCore Seat Cushion