Adjustable support for injured or arthritic knees. Latex free materials. Latex free materials. Size Selection: Adjustable Sizing: Measure circumference of thigh 3 inches above knee cap. Adjust to fit size: Fits up to 22 inches (55.88 cm). The Ace Brand Trademark is your assurance of superior quality, support and comfort. Trusted brand since 1918. Odor-resistant. Plush binding for durability to help prevent chafing. Soft, neoprene blend material is breathable and allows excess heat and moisture to escape to keep you cooler and drier. Comfort fit sleeve helps reduce irritation behind the knee. Adjustable compression for custom fit. Antimicrobial treatment inhibits the growth of odor-causing bacteria on the knee support. The Ace Brand Knee Support is designed to provide you with the optimal support you need while assuring proper fit and comfort. Provides adjustable levels of compression, support and therapeutic heat retention to help relieve symptoms associated with strains, sprains, arthritis and muscle pain. Made in China for 3M.