AN AIRBAG

An airbag configured to be inflated, the airbag being formed from first and second layers of fabric arranged in superimposition to define an inflatable chamber. Each layer of fabric has a structure comprising at least one yarn, and the two layers are interconnected by a plurality of tether yarns extending between the layers within the inflatable chamber. At least some of said tether yarns are implicated in the structure of said layers within a first group of connection regions comprising a plurality of first connection regions within which the tether yarns are implicated in the structure of the first layer, and a plurality of second connection regions within which the tether yarns are implicated in the structure of the second layer.