Safety Shoes (SX_KR_CYD017) Anti-smashing, anti-piercing, anti-static, oil, acid, insulation, anti-skid Safety Shoes (SX_KR_CYD017)Upper: Action leatherLining: MeshTongue: PUOutsole: PU/PU InjectionSize: 37-48Standard: SB SBP SI SIP S2 S3Mini quantity: 1000 pairsProductivity: 100, 000 pairs per monthAnti-smashing, anti-piercing, anti-static, oil, acid, insulation, anti-skid