The Cortech Super 2.0 12L Tank Bag is the Goldilocks of tank bags. Not too big nor too small, it's right sized to hold when… • 1680 denier ballistic polyester and 1800 denier three-lined twill Jacquard construction. • Protective non-slip, non-scratch diamond pattern mounting base. • One-way zipper on main compartment with a zipper garage for concealment. • Top flap internal organizer and soft lining.