Toe cap: non-metallic TOP RETURN resistant to 200 J. Insole: anti-perforation non-metallic APT PLATE - Zero Perforation. Upper: TECHSHELL, innovative fabric that is extremely tenacious, resistant to abrasion and tearing, water-repellent and breathable. Sole: polyurethane/TPU. Performance and technical features: 100% Metal Free, anti-torsion support, DGUV 112 - 191.