FK700 Inner Cap; Easy to use, hygienic disposable type hat. The embossed surface makes it highly durable. Since the rubber cord part is manufactured with heat welding, there is no need to worry about contamination with other foreign objects such as lint, split edges. GS1603 inner helmet; Protects the workers head in the clean room. Since it is attached to the inside of the wear, it will not fall off. Lightweight model. Cannot be adjusted.