FUNCTINAL DESIGN: Double Memory Magnet,Druable Rainproof Breathable Material and Tighten strap at the end so that you can adjust it prefectly. Waterproof Oxford Frabic: 100% Waterproof,Water pressure resistance up to 2500mm,high density material durable than other,Sunproof and Multi-layer blocked 99.98%UV and heat. Upgard size to 17inches,more enough space to protect charging port, you do not worry charging port full of rain or snow. Reminder: This car chaging cover not fit for car which have aluminum alloy,plastic or carbon fiber shell.Cover's magnet can be manually testored to orginal shape after receipt.