The disclosure is directed to a composite cushioning structure including a fluoropolymer layer having a major surface and a polymeric layer overlying the major surface of the fluoropolymer layer. The composite structure has wherein the composite structure can withstand a hot press at a temperature of at least about 330 DEG C. to about 400 DEG C. and a pressure of about 3 MPa to about 5 MPa for at least about 15 cycles.