an outer band and an inner band, the outer band and the inner band connected using a double-walled vane, the double-walled vane including openings to pass cooling air flow from the outer band to an airfoil of the engine fairing, the engine fairing including a lattice structure, the lattice structure to limit vibration of the engine fairing, the double-walled vane including a leading edge and a trailing edge;

a strut extending through a hollow interior of the double-walled vane, wherein cooling air exits the strut through a passage on a side of the strut, the cooling air enters the double-walled vane at the leading edge and exits at the trailing edge; and

an end segment seal, the end segment seal formed on an edge of the engine fairing using an auxetic material, the end segment seal including a curved edge with an acute inner angle, wherein (1) a first layer of the outer band or the inner band forms the curved edge of the end segment seal and (2) a second layer of the outer band or the inner band forms a base of the end segment seal.