Andway&reg; Waterproof Outdoor Camping Picnic Blanket, Beach Mat in Large Size 79 inches and 79 inches Material:It's made of trhee layers, Polyester fabric and acrylic for the top face, Sponge padding in the middle, PE Aluminum for the bottom. It's durable and comfortable to sit on Water-proof and Sand-proof: The PE Aluminum bottom is waterproof and moisture proof,so it is great using on grass no matter the ground is damp. It can be used in sand condition because it's easy to shake off the sand Size:Open size 79"x79"(200 x 200cm); Fold size: 17''x11"x5.9"(43 x 28 x 15cm) Lightweight and lifting yoke design for convenient carry, you can fold it as a littitle package after used, you can reference the folding instructions in the original package. Easy to clean:Hand wash suggested,it's better using banister brush to wash the blanket top face, the bottom face can be flushed by clean water. Washed by machine note: COLD WATER-DELICATE CYCLE,Mild Detergent, Use no bleach, line dry Don't dry clean