A gastric band comprises a bladder having an opening, an insertable component to fluidly seal the opening, and a strap that may be overmolded onto the bladder. The insertable component may be a grommet or a plug. Additionally, the insertable component may be coupled to a support member via a living hinge. In another configuration, the insertable component comprises a grommet and a suture loop at least partially formed within the grommet. A band may be provided instead of the strap, with the band having a grommet aperture formed through a deck such that the grommet may be inserted into the opening of the bladder. An overmolded shell having a latching member may be overmolded onto the deck to secure the grommet and a portion of the suture loop therein. The gastric band may further be coupled to a flexible conduit and an injection port.