Compact Picnic Blankets is made of 210T Nylon. With 4 built in corner pockets, you can fill it with sand or push some tent pegs into the loops to keep it down on the beach or on the grass. You could also fix it with four tent peg. It can be folded into a small size and packed in a small bag, and it is light to carry. Great for beaches, picnics, parks, family trips, sports events, open-air festivals, camping, hiking, fishing, other occasions and outdoor activies.