Gears Canada Tank Bag - Neptune - Magnet 100196-1 1200-denier Technolast water-resistant, UV-treated polyester construction Clear vinyl pocket and large top pocket keep maps and necessary items accessible Measures 12in. L x 7in. W (rear)/5in. W (front) x 4in. H (w/ pocket)/3in. H (w/o pocket) Neptune model mounts with rare earth magnets; Stratus model mounts using suction cups