This model has a one-piece cover which attaches with velcro. Henriksdal comes in 2 fits (standard and large). When you add the item to your shopping cart, the different fits will be explained and you’ll be prompted to select the correct one before checking out. Please be careful not to confuse this model with similar-sounding Henrik. This model comes in different sizes. Please measure your chair to ensure you choose the correct size. A - measure the width at the front of the chair from side to side. See illustration. B - measure the width at the backrest from side to side. See illustration. Standard size: A = Approximately 51 cm , B = Approximately 44 cm Large size: A = Approximately 53 cm , B = Approximately 47 cm