Great for kneeling down to grab the fish The padding is made of 100% Frothed Polyurethane - a visco-elastic "memory foam" material. The thickness is 1/4". The density is 12 lbs. This MARINE CARPET PADDING is designed for new boat manufacturing or re-carpeting. This listing is for one 6' (6 Feet) x 15' (15 feet) roll. Other roll sizes are available in other listings or custom sizes can be made as well. Just message me if you have any questions. Benefits include: Provides cushion where you need it most while fishing High Density Factor for maximum effectiveness Stay quiet while over the fish - reduces sounds Greatly improves the look and extends the life of the carpet Great for kneeling down to grab the fish The padding is made of 100% Frothed Polyurethane - a visco-elastic "memory foam" material. The thickness is 1/4". The density is 12 lbs.