Technical Specification Rns Safety Shoes Shoes Design: Design - A, Low Ankle. Construction : Shoes Construction material Upper Leather & PU sole Material. Upper : Buffalo Leather, Thickness 1.8 mm to 2.0 mm Steel Toe Cap / Composite : Toe Cap capable of withstanding Impact Energy 200 Jules and 15KN Compression. Extra Wide for more comfort Laces : Round Nylon laces Steel Mid Plate / Kavaler : Steel Mid Plate / Kavaler prevents penetration of sharp objects like nails etc from the bottom sole Sole : Single Density Polyester (PU) sole and Antiskid sole, Antistatic, Oil resistant, ESR (Electric Shock Resistance) also available. Specific Ergonomic Feature : All Articles are designed for efficiency and comfort in the working environment. Size Role : 39 to 47 Certifications : ISI Mark as per IS - 15298(Part - 2):2016 And CE Certificate as per EN ISO 20345:2011.