Picnic sheet Cushions Used once on a picnic sheet at an athletic meet. Washed and stored. All covers are removable with a zipper. Four individual sizes. I think the cushions are filled with sponge. Made of nylon and vinyl, so you can easily wipe off dirt. Easy to care for, so it might be good for home use or for pets. Good for children who easily spill food, and for nursing care. Since they are cushions, How about using them to prevent the cold when sitting on concrete at sporting events? Also for watching sports, etc.