An ink cartridge used in an inkjet recording apparatus, including and ink storing section having an ink outlet section, and an outer case, wherein the outer case includes a casing section to store the ink storing section, a positioning member to secure the ink outlet section, a first cushioning member to support a top of the ink storing section, a second cushioning member to support a bottom of the ink storing section, and a securing member to secure at least a part of the ink storing section onto the outer case.