• Standards and Certifications EN ISO 20345:2022 Product Description Lining, 3D breathable textile Saya, microfiber/tpu film Aluminum Toe Antistatic Waterproof Materials Comfortable High durability Breathable Weight: X g S2 – Closed heel area with the following characteristics: E – Heel energy absorption A – Antistatic shoes FO – Fuel oil of the outer sole