Ez Schlep Expandable Bicycle Rear Saddle Pannier and Travel Bag Bike Expandable Pannier that double as travel bag Waterproof polyester material, solid and durable; With a main pocket, two side pockets Sliver grey reflective stripe, it is safe to ride at night Matched with straps, it is convenient for you to carry when you are not bicycling Stylish and classic design, small and exquisite appearance