Size: M is suitable for waist circumference 57-67cm, L is suitable for waist circumference 68-79cm, XL is suitable for waist circumference 80-110cmMaterial: Faux Cashmere. Skin-friendly, breathable, flexible, stretchy, thin, cozy, warm, keep you waist, abdominal and back warm and comfortable in spring and autumnProvide gentle support for a weak, injured and arthritic back. Helps keep affected area warm after injury and during recovery. Perfect for wearing under clothes to relieve the backache painUtility in a variety of sports protection, perfect for outdoor activities in autumn, spring and indoor activities winter, such as Cycling, Biking, Motorcycle, Snowboarding, Snowmobile, Skiing, Camping, Hiking, Climbing, Hunting, Running, Dance, Yoga and Gym FitnessMen women warm rheumatic back pain brace lumbar sciatica belt kidney waist warmer support. Suit for people sedentary/long standing in office, stomach cold, back pain and work outside in cold weather. A great Christmas/New Year/Holiday/Festival/Birthday gift for yourself, friends and familiesall Products From Us Have Undergone Strict Quality Checks.if There Is Any Quality Problem Or You Are Not Satisfied With The Productcontact Us.we Will Give You The Best Solution.