Designed especially for flat handlebars, this 53 cm wide bag provides 15 liters of waterproof storage space. A convenient valve on the back allows you to release excess air from the bag. Be sure to purchase a [handlebar mount](https://scandinavianoutdoor.com/kampanjat/ortlieb-ultimate-/), which attaches to the connector on the bag's back panel. The bag cannot be directly attached to the bike. - Waterproof PS21R and PS33 fabrics: a durable choice - IP64 protection level: excellent dust protection and resistance to water splashes from all directions - Compression straps - Hooks for attaching the separately sold Accessory-Pack add-on pocket - Elastic strap for additional packing options