I love the cushions for my outdoor folding chairs.  I use them around my fire pit.  sturdy ties on back top and seat back.  Ties are long enough to tie a bow.. and hold tight.   The fabric is great.  They were caught in a rain storm and held up well.  The water did not penetrate .  I do take the cushions off usually when not in use, and keep in my outdoor storage bin. 
Comfortable seat .. Great product.