The picnic blanket is great choice for beach, park, or bleachers thanks to its PEVA waterproof and sandproof backing.The Acrylic fiber on the top, foam in the middle, and a waterproof layer on the bottom. The top layer is soft enough to let you comfortably nap in the sun and gentle enough for a baby to lie. With the foam in the middle, you won’t feel uncomfortable even if you picnic for a long time. The waterproof bottom resists dirt, sand and water. This park blanket can be packed as a classic roll-up style, you can pack it easily with the adjustable belt . Itcan allow 4-6 persons to sit on, or 2-3 persons to lie on. Designed for picnic, camping, hiking, climbing, beach, grass, park, outdoor concert, and it’s also great to use as playing mat for kids indoor and outdoor.