BOOT U-POWER ALASKA UNITED KINGDOM CI S3 SRC. Protection class: S3 HC ESD CE. UNI EN ISO 20345:2022 Regulation. Work boot with rubber sole, innovative ergonomic and aesthetic design. Resoleable toe cap, compression socks, and soft footbeds for long-lasting comfort. Integrated high-tech suit for efficient safety against dust and liquids. Antistatic leather panel on the inner side of the toe cap. Very mild weather conditions (spring/fall).