A napped leather-like sheet-shaped article includes a fibrous substrate which is a woven fabric or a knitted fabric, and a resin applied to the fibrous substrate, and includes, on a front surface thereof, a napped surface having naps with the resin adhering thereto. The number of structure points of yarns constituting the fibrous substrate per 25.4 mm square is 1,500 to 10,000 in the case of a woven fabric, and is 3,000 to 9,000 in the case of a knitted fabric. The total number of fibers involved in crossing or entanglement at structure points per 25.4 mm square is 396,000 to 2,640,000 in the case of a woven fabric, and is 912,000 to 8,208,000 in the case of a knitted fabric. The constant load elongation rate is 5% or more, and the constant load set rate is less than 10%.

A coated microfibrous web, a method for producing the same, the use thereof as a covering of a radiation protection material, and a radiation protection device are described. The coated microfibrous web contains: (i) a microfibrous web containing one or more polyesters and/or one or more polyamides and/or one or more polyamide-polyester copolymers and having an impregnation composition containing (a) an aromatic dicarboxylic acid, the dicarboxylic groups of which are each esterified with a diol, and/or (b) one or more oligomers, each containing 2 to 10 repeat units consisting of a monoester of an aromatic dicarboxylic acid impregnated with a diol; and (ii) a layer comprising polyurethane which is present only on one side of the microfibrous web.