Ortlieb Back-Roller Urban Pannier Description: The Ortlieb Back-Roller Urban Pannier handles the task of safely transporting clothes or other daily essentials by instituting waterproof PU-coated cordura fabric to fend off the elements and an adaptive hook interface for pain-free attachment to the rack of your choice. Features: Multi-functional weatherproof pannier with quick attachment interface and carrying strap QL2.1 system fits rack tubing between 10 and 16mm in diameter and features anti-scratch coating to keep racks safe Top QL hooks and lower sliding hook adjusts without requiring any tools Shoulder strap enables easy bag transport when traveling without a bike Specifications: Pack Type: Pannier (Sold Per Side) Pack Capacity: 20L Mount: Buckle Waterproof: Yes Material: Polyurethane-coated Cordura Dimensions: 12.6 x 6.7 x 16.5" Color: Black Weight: 840g