【large Picnic Blanket】Our outdoor picnic blanket unfolds to a generous size of 59"×79" (150 200cm), comfortably accommodating up to 4 adults, making it the perfect choice for the whole family. 【Waterproof and Sandproof】The bottom of our picnic mat is made of PVC waterproof and sandproof backing, which effectively prevents water, mud, and sand from seeping into the mat, keeping it clean and dry whether you are on wet grass, muddy riverbanks, or soft sandy beaches.