... Sole Steel Plate. 4.Comfortable and Sweat Absorpt Insulating Boot/Safety Shoesspecifications:1.Rubber/PU/PVC/ Leather,color as customer' ... Capacity of a 20' container: about 3200 pairs.More details: Safety ShoesFunction: Waterproof, wear-resisting, anti-smash, anti-hit, anti- ... + puncture-proof and tread pattern 5KV,10KV,30KV Insulating boot/ labor safety shoes/working shoes/Labor protective shoes