The waist trainer belt is smooth, comfortable and highly elastic, not easy to wrinkle or deform. It can be worn inside or outside to increase your core temperature during exercise without irritating your skin.
•The neoprene fabric trimmer belt makes you sweat 3 times more than usual to accelerate calorie burning process, keeps your muscles warm and supported, and prevents post-workout fatigue and injuries
•Built-in 5 steel bones prevent the sweat waist trainer corset from rolling down or shifting
•The 3-row hooks and the wide hook & loop fasteners are fully adjustable for close fitting
•The waist trainer corset with steel bones snug fits your midsection to relieve back pain and correct your posture
•Outer fabric material: Polyester+Nylon; Inner material: Neoprene