The Ortlieb Back-Roller Core is a 100% waterproof, robust polyester bag ideal for extended bike tours and daily commutes. It keeps items dry and secure, making it perfect for work, shopping, or urban adventures. Expandable with optional accessories like the Carrying System Bike Pannier and various inserts for stability and organization, it's a reliable companion that withstands the elements and simplifies everyday life.

• QL2.1 mounting system for racks up to 8, 10, 12 and 16 mm
• Waterproof gag made of PVC coated polyester fabric
• Top QL hooks and lower sliding hook adjustable without requiring any tools
• Lower hook rail synthetic to reduce abrasions on rack
• Highly reflective Scotchlite reflector
• Easy to clean inside
• Maximum load per pannier is 9kg / 20 lbs