A saddled vehicle with an airbag device the airbag device comprising; a retainer provided in front of a passenger seat ; an inflator ; an airbag accommodated in the retainer , the airbag being configured to be expanded by gas released by the inflator and deployed upward from an opening in an upper surface of the retainer ; and a lid blocking the opening , wherein a cover covering the retainer from an outer side is provided below the lid , wherein the retainer includes an inflator accommodating portion accommodating the inflator , wherein the cover covers the inflator accommodating portion , wherein the lid is formed integrally with the cover , wherein the cover includes a ripping portion that is caused to rupture by the airbag being deployed, wherein the lid includes a lid-side ripping portion and a hinge portion that are caused to rupture by the airbag being deployed, wherein the ripping portions and the hinge portion are a groove-shaped brittle portion formed to have a thin plate thickness as compared to the plate thickness of the lid and the cover at the part around the ripping portions and the hinge portion , the ripping portions are formed to have a thinner plate thickness than the plate thickness of the hinge portion and rupture with higher priority than the hinge portion , the lid and cover are deformed starting from the hinge portion , wherein a lower-side opening portion opened downward is provided in a lower surface of the cover , and the retainer is able to be accommodated in the cover from the lower-side opening portion , wherein the retainer is formed into an L shape including an upward/downward extending portion extending upward and downward and a sideward extending portion extending outward in a vehicle width direction from the upward/downward extending portion , the opening is provided in an upper surface of the upward/downward extending portion , and wherein the cover covers the inflator accommodating portion provided at the sideward extending portion . a retainer provided in front of a passenger seat ; an inflator ; an airbag accommodated in the retainer , the airbag being configured to be expanded by gas released by the inflator and deployed upward from an opening in an upper surface of the retainer ; and a lid blocking the opening , wherein a cover covering the retainer from an outer side is provided below the lid , wherein the retainer includes an inflator accommodating portion accommodating the inflator , wherein the cover covers the inflator accommodating portion , wherein the lid is formed integrally with the cover , wherein the cover includes a ripping portion that is caused to rupture by the airbag being deployed, wherein the lid includes a lid-side ripping portion and a hinge portion that are caused to rupture by the airbag being deployed, wherein the ripping portions and the hinge portion are a groove-shaped brittle portion formed to have a thin plate thickness as compared to the plate thickness of the lid and the cover at the part around the ripping portions and the hinge portion , the ripping portions are formed to have a thinner plate thickness than the plate thickness of the hinge portion and rupture with higher priority than the hinge portion , the lid and cover are deformed starting from the hinge portion , wherein a lower-side opening portion opened downward is provided in a lower surface of the cover , and the retainer is able to be accommodated in the cover from the lower-side opening portion , wherein the retainer is formed into an L shape including an upward/downward extending portion extending upward and downward and a sideward extending portion extending outward in a vehicle width direction from the upward/downward extending portion , the opening is provided in an upper surface of the upward/downward extending portion , and wherein the cover covers the inflator accommodating portion provided at the sideward extending portion . <EOS>