I'm a little annoyed with the straps.  They are velcro and looks like it must be made for a specific chair.  Both straps are way too long and/or don't have enough velcro on them.  The top strap barely velcros, and the bottom strap won't velcro at all.  I have to tie the strap in a knot.  Unless your chair is very thick, you'll have to compromise.  I assumed the straps were elastic and would expand/shrink to fit any site chaise.  By the way I bought these to go on the Northdale Chaise Lounge (wooden) that wayfair sells.