found at Wild Earth
The Z Adventure R5 is a saddle bag designed to carry a large volume of items without the need for a rear rack. Equipped with several durable self-adhesive straps and anti-tear material on its base, this bag attaches to the saddle rails and seat post for optimal weight distribution on the bicycle. The 5L volume is ideal for day-long outings or for training in variable weather conditions. The Z Adventure R5 is a great alternative for those who don't want a backpack. The folding closure and waterproof fabric with heat-sealed interior can safely carry all the equipment needed for a tour.