UPPER: Drummed leather Hydro 1,6-1,8 mm. Soft Full Grain Leather Hydro LINING: 3D Air circulation 320 gr. INSOLE: Five 4 Fit TOE CAP: Alu SXT 2.0 Toe cap RESISTANCE TO PERFORATION: Textile resistant to 3.0 mm nail – X Method SOLE: PU / PU ESD-PLUS SRC: Double density PU sole, Outer- and in-between sole with ESD compound. For use in contact with sensitive electronic equipment. Light and comfortable, very versatile, highly non-slip SRC Antislip standard. Highly breathable and absorbent anatomic insole.Multilayer structure to take advantage of the peculiarities of each component. Dry and with a comfortable memory foam “pillow” ALU SXT 2.0 AND ANTI-PERFORATION KX INSERT: Toecap “Alu Sxt 2.0” with differentiated thicknesses, resistant to 200J. Non metal perforation resistant Insert to over 1100 N with a 3.0 mm truncated cone nail.Protection over the entire sole of the foot. Flexible and comfortable DYNAMIC HC CONTROL: Ergonomic rigid internal structure. It houses the heel into the right seat, adjusting the foot support and control of the ankle sideways movements. It keeps the foot tight to the shoe, allowing the perfect fit. STABILACTIVE: Support made of rigid plastic material. It stabilizes the heel bone, the instep and tarsal joints, without altering energy absorption. A support for the natural movement of the foot; it provides comfort and greater stability. ESD: ESD footwear discharge static electricity and avoid damaging surrounding objects; they are designed in compliance with the following standards: IEC EN 61340-5-1:2016 - IEC EN 61340-4-3:2018 - IEC EN 61340-4-5:2018. DUALMICRO: Double non-slip layer of microfibre, resistant up to 200,000 cycles. Makes the footwear more comfortable, blocking the foot during use. EN ISO 20345:2011