This cover is completely waterproof. My patio furniture has stayed dry and protected even during torrential downpours.I appreciate the variety of sizes available. It fits my sofa perfectly, with enough room to accommodate any cushions without being overly loose.The cover includes handy features like drawstrings for a secure fit and handles for easy removal and storage.  this patio sofa cover has exceeded my expectations. It offers excellent protection for outdoor furniture and is definitely worth the investment!