Adjustable shoulder straps needed: The thickened cotton straps can be adjusted to different lengths to accommodate different carrying methods, you can use the back of your hand, put it on your shoulder, so that your hands are free when you take too much. Highquality fabric: The topquality fabric is made of durable polyester, printed with classic navy blue, the print is securely fixed and not easy to fade over time. There is a soft cotton pad in the middle, which makes the picnic blanket soft and comfortable to sit and lie down. Extra large picnic blanket: The picnic blanket is extra large in size 80 x 80 inches, enough for 78 people to sit or 34 people to lie down. The picnic blanket is a musthave for outdoor picnics, going to the park, lake, beach, camping and hiking, and it is also a great gift for family and friends. Machine washable: The 3 layers of the picnic mat are firmly combined with an ultrasonic process, which can be machine washed and will be like new after washing. Enjoy your outdoor picnic time without worrying about getting dirty. 100% waterproof bottom: The bottom of the beach mat is made of coated waterproof polyester, which will not get wet even on wet grass and beaches.