HexWeb® Flex-Core®, when compared to a standard hexagonal configuration, provides for exceptional formability into compound curvatures with reduced anticlastic curvature, and improved cell angularity to the contour part surface. HexWeb® Flex-Core® is offered in both Non-Metallic and Metallic materials. Highly contoured sandwich panels, such as leading edges and flaps, nacelles, fairings, doors, and access covers, as well as other parabolic, spherical and cylindrical shapes are prime candidates for Flex-Core®. HexWeb® Flex-Core® applications exist whenever extreme curvature dictates flexible cell geometry, such as radomes, ducts, leading edges of wings and stabilizers.