The invention provides a substrate for inhibiting heat transfer. The substrate includes a textile base layer formed with filamentary members. The substrate also includes a sliver layer having a plurality of staple fibers interlaced with the filamentary members of the textile base layer. The staple fibers to the sliver layer are oriented substantially perpendicular to the base layer. The substrate also includes at least one reflective layer attached to one of the base layer and the sliver layer.