The largest waterproof bike bags in the world are also available in wear-resistant, waterproof tarpaulin material made of PVC coated polyester. They offer the same payload as the Plus version. The remaining features are identical to those of the Back-Roller Pro Plus: additional front pocket, proven roll closure, and ingenious QL2.1 system for a super convenient and secure attachment to virtually all commercially available bike racks. Those who hesitate owing to a lack of stowage space to venture off on a bike tour around the world, a European bike vacation or a multi-day tour with the family will definitely no longer have any excuses! Time to pack up and take to the road! Further features: + Integrated inside pocket + shoulder strap + high luminosity reflectors on both sides + right and left-side mounting + tool-free adjustable QL system - fits on all tubes with a diameter of up 16 mm