Description: Design:This waist belt features a support system with 4 metal support bar and 1 spring soft support. Combined with two sets of cross elastic bands (4 in total), it provides firm lumbar supportBreathable & Lightweight Design:Back Brace for Lower Back made of polyester fabrics with a mesh design that ensures breathability and durabilityPortable:lumbar support belt is lightweight and portable, easy to carry outWide Application: Waist Support Belt is widely used in gym training, exercise, jogging, running, weightlifting, etcGift: Back Support Belt is a great gift choice for family and friends on birthdays and holidays Size Chart: S: 85cm/33.46inch long, suitable for waist 60cm-75cm/23.62inch-29.53inchM: 90cm/35.43inch long, suitable for waist 70cm/27.56inch-90cm/35.43inchL: 100cm/39.37inch long, suitable for waist 85cm/33.46inch-105cm/41.34inchXXL: 110cm/43.31inch long, suitable for waist 100cm/39.37inch-130cm/51.18inch Package Includes: 1 Waist Support Belt