Ortlieb Bike Packing Seat-Pack

This is the largest of Ortlieb's waterproof saddlebags. A very practical way to carry a 'moderate' amount of stuff. This bag has an inner stiffener, reflective patches, and and adjustable mounting system that fits the great majority of saddles.
Specific mounting hardware for Brooks and comfort saddles (these saddles have wider than normal seat rail spacing) are available as a separate accessory.
Click-Locking seat mount allows the bag to be installed or removed in seconds, yet holds bag securely on the bumpiest of trails.