SIR399 SERIES EN ISO 20345 S1PS HRO FO SR, EN 61340 ESD UPPER: Nylon and Mesh LINING: SIR customised 3D-TEX in polyester with honeycomb weave with extra protection in the heel area TOECAP: Nano fibreglass PUNCTURE-PROOF: NWT - ultralight non-woven fabric (PS) FOOTBED: Recycled multi-hole polyurethane foam SOLE: EVA Super Foam / Rubber
