Features: Experiences superior warmth and joint protections with our double fleece thermal knee sleeves, from polyester and spandex to effectively locks in heat and combat winter stiffness during outdoor activities. The stretchable spandex design ensures snug, nonslip fit while maintaining flexibility, making these knee sleeves for running, cycling, or prolonged wear without discomfort. Perfect for seniors, office workers, and active individuals seeking all day comfort, these breathable sleeves prevents overheating while providing gentle support for sensitive joints. Wear during morning workouts, at your desk, or on winter hikes,their design adapts seamlessly to sports, daily routines, and cold weather adventures. Engineered with 2layer insulation and moistures wicking properties, these knee guards deliver year round joint warmth without bulk, blending therapeutics support with everyday practicality. Specifications: Materials: polyester fiber, spandex Size: for knee circumference 34-40cm Color: Gray, Skin Color(optional) Package Includes: 1PC Knee Warmers note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.