[Sand-proof, water-proof, insulation] Use Oxford cloth materials, sand or water pass/fall. Its insulation is also very good. [Large Fold] The size of the extra large picknick blanket is (210x150cm) after unfolding, suitable for 4-6 adults. Easy to compress. Portable with built-in handle. [Easy to clean, machine washable] Wear-resistant lining can quickly wipe off dirt or stains, suitable for machine washing. [Multifunctional outdoor blanket] You and your family can use the XL picnic blanket as a big beach blanket, a stadium blanket for sports events, a lawn blanket for concerts, a picnic mat for a park, and a camping blanket. Durable waterproof backing and padding for grass, sand and many outdoor surfaces. Applicable number: multiple people Moisture-proof mat type: Floor mat Sports outdoor projects: camping, mountaineering, barbecue, fishing, self-driving tours and other outdoor sports