Abstract: Layered heat-proof protective clothing includes a front fabric layer and a breathable waterproof interlayer and/or heat-shielding layer, the layered heat-proof protective clothing having a thickness of 2.5 mm or greater after 5 washings according to ISO 6330, and a time to temperature increase by 24° C. of 18 seconds or longer in the heat transfer test ISO 6942-2002 in European Approach A, Section 4, according to ISO 11613, wherein the basis weight of the layered heat-proof protective clothing is 450±50 g/m2, and wherein the front fabric layer is composed of a double weave fabric, having a front side fabric and back side fabric whose TMA shrinkage factor difference at 400° C., with 150° C/min increase, is at least 4%, and the variation in thickness of the double weave fabric after 8 seconds of flame exposure from the front side fabric side following ISO 17492, TPP, being 2 mm or greater.

Abstract: The invention provides heat-proof protective clothing not only having excellent heat-proof chemical resistance and breathable waterproofness, but also being lightweight and having a high heat-insulating property, meeting the specifications of the flame exposure test (ISO 9151) and radiant heat exposure test (ISO 6942-2002) of Approach A and B of ISO 11613, thus being usable as layered heat-proof protective clothing with low heat stress.