After looking for several days on all of the sites for these particular cushions, I finally found them! They have Velcro straps at the bottom and the very top back to hold the cushion in place and at the center there are ties on either side. These are so perfect. I am very pleased and I’m glad I waited to find these. These are designed to completely cover the full width and length of the chaise lounges I had previously purchased elsewhere and even have a neatly tucked zipper at top of back pad. Just a heads up....Any oils/lotions/sprays seem to stain/darken right away, I couldn’t seem to get rid of them using just soap and waterbut for the price, I’ll just get more in time.