The ANJ premium outdoor waterproof blankets utilize the 3-layer design, separating them from the lower quality 2-layer outdoor blankets. Using high-quality materials, the 3-layer design (fleece on top, aluminum the back, and selected foams in the middle) makes the product both durable and practical. The aluminum layer on the back is waterproof and easy to clean while the fleece and the middle layer together give you more comfort. It also provides more thermal insulation and moisture-proof. Finally, the 3-layer design integrates the blanket into one anti-slippery piece, unlike the 2-layer blankets. The ANJ Outdoors Premium Waterproof blankets feature extra-large size - 79 inch x 71 inch which is large enough for 5-6 adults sitting or 3-4 adults laying. However, when it is folded, the compact tote only measures 14.2 x 10 x 4 inch and weighs only 2 Lb., making it perfect for travel and carrying around. With attractive bright color and selection of patterns, the ANJ premium outdoors blankets are ideal for grass, picnics, camping, the beach, outdoor concerts, tailgates, stadiums, sporting events and any other time you'll be hanging outside!