Quality Materials:The Shoe Cover Is Made Of High-Quality Non-Woven Fabric, Anti-Skid And Wear-Resistant, Light And Breathable.The New Design Makes The Shoe Cover Thinner and More Breathable on The Premise of Ensuring The Gram Weight. Adjustable Size:The Shoe Cover Has Elastic Elastic Band, Which Is Suitable For Most Shoes And Boots. The Retractable Size Is About 15.6in/40cmlong X 5.8in/15cm Wide, Suitable For Both Men And Women Advantage:The Rubber Band At The End Of The Shoe Cover Is Firm And Not Easy To Break, Which Helps To Keep The Shoe Cover Stable On The Foot, And The Bottom Has Anti-Skid Texture To Enhance The Anti-Skid Performance. Widely Used:Protect Your Shoes From Dust Intrusion, Very Suitable For Home, Laboratory, Museum, Hospital, Machine Room, Exhibition Hall, Garden, Etc It Contains 100 (50 Pairs) Disposable Heavy Duty Shoe Covers To Provide Carpet Floor Protection And Keep The Floor Clean.About Size: Disposable shoe covers are one size fits all and fit shoes size 4-12. Shoes over 12 sizes are prone to tearing indoor shoe covers. Please purchase suitable products according to your own shoe size.