US Patent 8402676 Fireproof footwear with protective function against toxic substances

The invention relates to fireproof and/or flame-resistant footwear (1), in particular boots for firefighters, with a protective function against harmful substances, such as toxic chemical substances, the footwear (1) having a multilayered structure (2), the structure (2) comprising an outer layer (3), facing away from the foot when the footwear is being worn, and an inner layer (4), in particular an inner lining, provided on the outer layer (3) and facing towards the foot when the footwear is being worn. An adsorption layer (5) with an adsorption material (6), in particular activated charcoal, adsorbing harmful substances, is additionally arranged between the outer layer (3) and the inner layer (4), and the outer layer (3) is additionally provided with a fireproof and/or flame-retardant coating or impregnation (12).