UPPER: water repellent full grain leather. EXTERNAL LINING: breathable synthetic. INTERNAL LINING: TEXELLE 100% polyamide fabric, breathable, it absorbs and releases the moisture, abrasion resistant. Cold Protection thanks to Thinsulate B200. FOOTBED: full SOFT-BED, made of extremely soft, scented polyurethane, anatomic, removable. The upper layer absorb moisture and keep the foot dry. SOLE: polyurethane/nitrile rubber resistant up to 572 °F (1 minute contact). TOE CAP: non metallic TOP RETURN. PLATE: non metallic APT PLATE - Zero Perforation with high electric resistance. WIDTH: WIDE. PLUS: abrasion resistant polyurethane toe cap protection , sealed seams. PERFORMANCES AND TECHNICAL FEATURES: 100% Non Metallic , Anti-torsion Support, insulated , sealed seams, Test Mark II , Thinsulate , toe cap protection.