A neckline gusset for securing an exterior shell layer of an apparel item to an inner liner layer of the apparel item at a neckline region of the apparel item is provided. The neckline gusset comprises an outer edge corresponding in shape to the neckline of the exterior shell layer, an inner edge corresponding in shape to the neckline of the inner liner layer, a first center-front gusset edge connecting the outer edge to the inner edge at a first end of the neckline gusset, and a second center-front gusset edge connecting the outer edge to the inner edge at a second end of the neckline gusset. The first and second center-front gusset edges curve inwardly into the body of the neckline gusset and form acute angles with both the outer edge and the inner edge of the neckline gusset.