Feature: -Made of mesh cloth fabric, breathable and absorbent,easy to wash and refreshing. -Adjustable elastic buckle, convenient, comfortable and non-slip -Superior construction, long-lasting foam with non-wrinkle, moisture-wicking -Cylindrical shape designed to fit the waist more closely, providing strong support for the waist -Maintaining the normal physiological curvature of the waist, relieves lower back pain and stiffness -Versatile use: Can be attached to office chairs, vehicle and plane seats.