These X-Large Hazmat Boots are made of latex rubber and have textured soles to reduce slipping. Designed to slip over your shoes (10-12 Shoe sizes). These completely waterproof boots are made specifically for flood work, hard surface cleaning, chemical application or anywhere wet feet might be a problem. Designed to fit over existing shoes, simply roll on and off. Durable enough to be reused, and affordable enough to be disposable. • Perfect for Flood Work, Chemical Application and Cleaning • X-Large Boots Can Fit Over 10-12 Sized Shoes Strong and Durable Construction