Leather ankle boot with composite toecap and Dyna-Flex® insole reflective elements Material: upper made of 1.6 - 1.8 mm split nubuck leather (one piece) PU toecap with TPU reinforcement protective heel cap, metal-free, breathable, abrasion-resistant non-woven lining sole: PU-PU, oil-resistant, antistatic, antislip, puncture-resistant. Standards: EN ISO 20345:2022 S3S FO SR