100% non-metallic, with protective toecap and midsole, Boston is comfortable and lightweight, it's developed with innovative comfort materials including TPU upper, a shock absorbing dual density EVA nitrile rubber outsole and Activ-Step® PU anti-fatigue comfort footbed.
Specification: EN ISO 20345:2011 S1P SRC
Upper
Durable and breathable whole TPU upper
Protective
Protective fibreglass toecap and composite anti-penetration flexi-midsole
Lining
Moisture wicking breathable mesh fabric lining
Outsole
Shock absorbing dual density EVA nitrile rubber outsole
Footbed
Activ-Step® PU anti-fatigue comfort footbed