Conforms to EN 20345:2011 and EN 20349:2011 S3 HRO HI3 CI SRC FE. Conforms to the latest foundry boots standards. Premium molten metal splash-resistant full grain buffalo leather. Quick release Velcro fastener. Flame-resistant thread construction. Force 10 HRO 300 degree nitrile rubber outsole. Ortholite comfort footbed. Metal-free toe cap and midsole.