We only use high quality cotton material for this replacement sofa cover compatible to Ikea Ektorp chaise with arm cover, and we run a number of tests to make sure that our cover fits well to Ektorp chaise. Pay attention if the ARM in on the left or on the right when you are facing the sofa, not when you sit. The package includes one set of sofa covers, and only fits ektorp chaise lounge cover Warning: the covers are design only for Ektorp chaise only. Sofa is not included.