A container (10; 10') for a vehicle, said container comprising: - a frame, which delimits a compartment suitable for housing objects; and - releasable coupling means (50; 60', 50'), which are carried by said frame for coupling said frame to a structure of said vehicle; said frame comprising at least one inflatable portion (12, 36, 13), which defines an internal space (24, 38) provided with an inlet that can be coupled to a source of pressurised gas for filling said space (24, 38), so that said inflatable portion (12, 36, 13) passes from a deflated state, in which the volume of said space (24, 38) is minimal, to an inflated state, in which said space (24, 38) has a greater volume; said inflatable portion (12, 36, 13) further comprising two outer walls (25, 26) and constraining means carried by said outer walls (25, 26) inside said space (24, 38) for limiting the relative movement between said outer walls (25, 26) when said portion (12, 36, 13) reaches the inflated state, wherein constraining means comprise a plurality of flexible ties, each having a pre-determined length, and wherein said outer walls (25, 26) comprise respective layers of fabric (31, 32), characterized in that said flexible ties are defined by a plurality of thread segments sewn to both of the layers of fabric (31, 32). - a frame, which delimits a compartment suitable for housing objects; and - releasable coupling means (50; 60', 50'), which are carried by said frame for coupling said frame to a structure of said vehicle; said frame comprising at least one inflatable portion (12, 36, 13), which defines an internal space (24, 38) provided with an inlet that can be coupled to a source of pressurised gas for filling said space (24, 38), so that said inflatable portion (12, 36, 13) passes from a deflated state, in which the volume of said space (24, 38) is minimal, to an inflated state, in which said space (24, 38) has a greater volume; said inflatable portion (12, 36, 13) further comprising two outer walls (25, 26) and constraining means carried by said outer walls (25, 26) inside said space (24, 38) for limiting the relative movement between said outer walls (25, 26) when said portion (12, 36, 13) reaches the inflated state, wherein constraining means comprise a plurality of flexible ties, each having a pre-determined length, and wherein said outer walls (25, 26) comprise respective layers of fabric (31, 32), characterized in that said flexible ties are defined by a plurality of thread segments sewn to both of the layers of fabric (31, 32). said frame comprising at least one inflatable portion (12, 36, 13), which defines an internal space (24, 38) provided with an inlet that can be coupled to a source of pressurised gas for filling said space (24, 38), so that said inflatable portion (12, 36, 13) passes from a deflated state, in which the volume of said space (24, 38) is minimal, to an inflated state, in which said space (24, 38) has a greater volume; said inflatable portion (12, 36, 13) further comprising two outer walls (25, 26) and constraining means carried by said outer walls (25, 26) inside said space (24, 38) for limiting the relative movement between said outer walls (25, 26) when said portion (12, 36, 13) reaches the inflated state, wherein constraining means comprise a plurality of flexible ties, each having a pre-determined length, and wherein said outer walls (25, 26) comprise respective layers of fabric (31, 32), characterized in that said flexible ties are defined by a plurality of thread segments sewn to both of the layers of fabric (31, 32).