Ibera PakRak Quick-Release Mini Commuter Bike Trunk Bag (Only compatible with IB-RA6 Rack) Smart quick release/clip-on system - Just simply attach and detach bags within few seconds - no straps required! Easy and time saving! Hard base, reinforced, padded main body - A durable polypropylene base allows the bag to be set down on wet surfaces, protecting the cargo within. Night riding safety - 360 Degree Reflective trim/ Taillight hanger design. Detachable padded shoulder strap and carrying handle for off-road use Carrier Compatibility - Only compatible with Ibera Carrier Rack IB-RA6.