Due to having a major back operation, I cannot risk sitting in a garden chair that could suddenly go back if the arms are lifted and for me a Lafuma recliner was the answer, as you can gently let it go back into the position you want and a wing on each arm, which you flip, locks & unlocks it. It is so comfortable that my husband bought one and we take them caravanning all the time. They do towelling covers too, which are great when you're covered in sun cream and saves the fabric getting marked. Look out for deals - I don't think they are expensive for the quality you get.