- Large, versatile size: 80 inches by 80 inches provides seating for 6–8 people or a comfortable space for 4 to lie down. Ideal for family use or a picnic with several friends. When rolled up, it forms a compact cylinder of about 16 inches long and 9 inches in diameter. - Sandproof and waterproof backing: The PEVA backing is waterproof and sandproof, making it well suited for the beach, park, or bleachers. You can easily shake or wipe off dirt, wet grass, and beach sand. The backing helps keep moisture out and adds comfort during use. - Seven-layer comfort construction: The blanket features seven layers for durability and comfort. The top layer is acrylic fiber, followed by foam in the middle, and a waterproof bottom layer. The top layer is soft for sunbathing or lying down, the foam provides support for extended use, and the waterproof bottom resists dirt, sand, and water. - Foldable and portable: Despite its seven-layer construction, the blanket is lightweight and easy to carry. It folds into a classic roll-up style and includes an adjustable belt for secure storage. The belt also has a hand strap, making it easy to take anywhere. - Practical use scenarios: - Beach day with family: Lay it out on the sand, sit comfortably with space for everyone, then roll it up quickly for transport. - Park picnic with friends: Provides a clean, dry seating area on grass or damp ground, with easy cleanup after eating. - Outdoor events or bleachers: Use as a resting mat or seating surface in outdoor venues where dirt and moisture are a concern.