From the technology and experience of ExtroStyle, comes a unique line of footwear: EXTREME! Especially designed to protect sensitive feet during work. THIS FOOTWEAR POSSESSES A DOUBLE CERTIFICATION: SAFETY CERTIFICATION AS IT IS A PPE PERSONAL PROTECTIVE DEVICE ACCORDING TO EN ISO 20345:2011 AND, AT THE SAME TIME, AN ORTHOPEDIC FOOTWEAR MD MEDICAL DEVICE ACCORDING TO CE MDR 745/2017. The Extreme footwear is suitable for most types of use as it is S3 SRC PROTECTION grade. It is a soft and a lightweight shoe, with leather upper and technical fabric inserts, anti-crush toe cap, antistatic and multi-layer ballistic fabric insert with the absolute guarantee of a puncture barrier, which is also highly flexible. The EXTREME shoe is designed for the insertion of a customised foot orthosis. The standard removable insoles used for the EXTREME line are composed of a high-density, open-cell foam that provides total breathability while protecting against perspiration.