Atranvelo Zap Top AVS Bag with Mini Panniers Key Features The ZAP Top features our award-winning AVS mounting system, internal zippered pockets, carrying straps, and handle with a 10.5 litre capacity Expandable mini side panniers increase capacity by 8 litres.The ZAP Top is also compatible with full size panniers in case you need even more storage Compatible with AVS racks For non-AVS racks, an additional bracket is available