EN ISO 20345:2011 S1P SRC - Ultra-lightweight microfibre combined with large surface ventilation for a pleasant climate inside the shoe - Two individually adjustable velcro fastening straps for ideal support - Aluminium toe cap - Highly flexible, metal-free puncture resistance SECURA FLEX with SECURA VARIO® SYSTEM - Functional lining made of breathable textile and microfibre - Replaceable comfort insole ERGO-SOFT ESD - Protection against electrostatic discharge - VARIO Multiflex® Technology - Outsole TPU Athletic ESD