Basil Urban Load Double Pannier - 53L Black. The Basil Urban Load Double Bag is a modern day bicycle bag for the city dwellers amongst us. The Double Bag is spacious organized flexible and has a contemporary design. Water-repellent tarpaulin fabric with a folding closure keeps gear dry when caught in an unexpected sprinkle. When empty it can be cinched flat thanks to the flexible sides. Basil Universal Bridge System the Double Bag is also compatible with systems like Racktime i-Rack and Carrymore.