POLYESTER+PVC Imported E-BIKE REAR RACK STORAGE: Dual-sided pannier for bicycles designed for rear rack mounting on bicycles and eBikes; bike pouch provides up to 20L of total storage SECURE STRAP ATTACHMENT: This cycling bag features buckle straps which fasten our bike panniers to most standard rear racks; carry handle allows for easy off-bike transports FOUR STORAGE COMPARTMENTS: Our bike bags include two main pockets and two zippered pockets for organizing tools, snacks, phone, water bottles, electronics, and accessories LIGHTWEIGHT AND DURABLE: Our storage bag for bikes is made from polyester and PVC material to help protect against moisture while remaining lightweight and easy to handle DIMENSIONS: Our bike saddle bag measures 12.6 x 9.45 x 7.09 inches (L x W x H); bridge length is 7.09 inches to accommodate a wider range of rear racks