... are available 4.full elastic/half-elasticFeatures* waterproof and dustproof,*light weight, convenience, flexible, economical, soft* Fluids resistant* Excellent ... used as dust-proof, and anti-skid, to keep room clean.Applicable scope:cleaning, medical check, food processing, protect dust ... dust and static in food factories, lab room, school, public places and so on Disposable Clean plastic shoes cover