Description:The cover offers a reliable protection of rain resistance, protecting backpack from scratch, dirt, sand.The rain cover adopts wear-resistant polyester to avoid rain and snow.To adjust the cover to fit your backpack. It will make the cover stick to the backpack to avoid falling off.Can be easily folded so that you can put it in the side bag of your backpack to save space.Elastic rain cover, hot stamping reflective strip, suitable for outdoor activities and perfect for outdoor travel, riding, climbing, hiking and so on.Specification:Size:XS (8-17L) :Height: 25-30cm/9.84-11.81inchLength: 20-23cm/7.87-9.06inchWidth: 15-18cm/5.91-7.09inchS (18-30L):Height: 30-40cm/11.81-15.75inchLength: 20-32m/7.87-9.06inchWidth: 15-20cm/5.91-7.87inchM (30-40L):Height: 40-53cm/15.75-20.87inchLength: 20-32m/7.87-9.06inchWidth: 15-20cm/5.91-7.87inchL (45-55L):Height: 53-65cm/20.87-25.59inchLength: 20-35cm/7.87-13.78inchWidth: 19-23cm/7.48-9.06inchXL (60-70L):Height: 70-75cm/27.56-29.53inchLength: 30-35cm/11.81-13.78inchWidth: 20-23cm/7.87-9.06inchPackage Includes:1 Piece Reflective Backpack Rain CoverNote:Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement.