Banjo Brothers 01040 Expanding Rack Top Bag has a sleek design that expands for those trips when you are packing extra gear. The stout, thick padding insulates your food and protects your valuables while out on a trail for the day. This rack top bag expands to 925 cubic inches in size and fits most rear-mounted bike racks. It is made with ripstop fabric on the top and with rugged ballistic fabric for the bottom panel with 360 degrees of reflective accents to keep you seen and safe. This rack top bag also features two side pockets for extra storage and convenience and a shoulder strap to carry off the trail, a web loop for a light and an inside key clip to keep your keys secure.